"the way I understand it
IBS just means you have a set of symptoms"
Nope they are a specific cluster of symptoms, minus red flags. Not just GI symptoms.
The diagnoses is no longer a diagnoses of exclusion or a "throw away diagnoses" That is wrong.
"I know that the docs don't believe in "leaky gut" or any of that stuff,"
No and there is a reason for that, but there is intestinal permeablity. That is one way you absorb nutrients. The functioning of sigmoid colon is mainly IBS.
Your IBS has an underlying cause, they just don't know exactly what it is yet, but a ton of good research has been done in the last five years. They know quite a bit about the d and c and d/c and pain aspects. In fact many issues about IBS.
Depending on the test you might not have had SIBO?
also you can have sibo and IBS, you can also have sibo without IBS and you can have just IBS.
The tricyclic is to help pain and gut functioning and increased anxiety.
This and some of your other symptoms are hallmark IBS symptoms. "generally relieved after a BM" and incomplete evacuation. In IBS the colon doesn't function normally and those are some of the abnormal symptoms in the cluster.
I can't diagnose you though, but your symptoms are consistent with IBS.
I am not sure you know the actual theories already on IBS, especially over the last five years and that is important in understanding IBS, which is a majorally complex condition.
There are just someways the body works that are important in IBS for one.
The majority of the bodies serotonin a neurotransmitter is located in the gut in specific cells that release it to start disgestion. This seems to be out of whack in IBS, but that is not the only issues.
Video Corner: Serotonin
Increasingly our understanding of IBS is that it is a heterogeneous disorder – that is, multiple factors contribute to the well defined symptoms of the disorder. One of these suspected underlying dysfunctions involves serotonin, which is a neurotransmitter or messenger to nerves. Most serotonin in the body is in cells that line the gut where it senses what is going on and through receptors signals nerves that stimulate a response. The serotonin must then be reabsorbed (a process called re-uptake) into cells. This process appears to be disrupted in people with IBS.
http://www.aboutibs.org/site/learning-center/video-corner/serotonin
This is from the chairman of the Rome committe to diagnose these disorders, who I wrote to and know personally.
Since I have suffered for thirty nine years of IBS I wonder what role foods play in IBS. So I asked Dr Douglas Drossman at the UNC Center for Functional GI and Motility disorders and here was his response. This is not a substitute for seeking medical advise from your doctor on any specific conditions you may have, but for educational purposes only.
Dr. Drossman is a Co-director of the Center and Professor of Medicine and Psychiatry at UNC-CH. He established a program of research in functional gastrointestinal disorders at UNC more than 15 years ago and has published more than 250 books, articles, and abstracts relating to epidemiology, psychosocial and quality of life assessment, design of treatment trials, and outcomes research in gastrointestinal disorders.
Dr Drossman's comments on foods for IBS Health.
Shawn,
To say that people with IBS may get symptoms from food intolerances is an acceptable possibility, since the gut will over react to stressors of all types including food (high fat or large volumes of food in particular). Furthermore, there can be specific intolerances. So if you have a lactose intolerance for example, it can exacerbate, or even mimic IBS. Other examples of food substances causing diarrhea would be high consumers of caffeine or alcohol which can stimulate intestinal secretion or with the latter, pull water into the bowel (osmotic diarrhea). The same would be true for overdoing certain poorly absorbed sugars that can cause an osmotic type of diarrhea Sorbitol, found in sugarless gum and sugar substituted foods can also produce such an osmotic diarrhea. Even more naturally, people who consume a large amount of fruits, juices or other processed foods enriched with fructose, can get diarrhea because it is not as easily absorbed by the bowel and goes to the colon where it pulls in water. So if you have IBS, all of these food items would make it worse.
However, it is important to separate factors that worsen IBS (e.g., foods as above, stress, hormonal changes, etc.) from the cause or pathophysiology of IBS. Just like stress doesn't cause IBS, (though it can make it worse), foods must be understood as aggravating rather than etiological in nature.
The cause of IBS is yet to be determined. However, modern research understands IBS as a disorder of increased reactivity of the bowel, visceral hypersensitivity and dysfunction of the brain-gut axis. There are subgroups being defined as well, including post-infectious IBS which can lead to IBS symptoms. Other work using brain imaging shows that the pain regulation center of the brain (cingulate cortex) can be impaired, as well as good evidence for there being abnormalities in motility which can at least in part explain the diarrhea and constipation. So finding a specific "cause" of IBS has grown out of general interest in place of understanding physiological subgroups that may become amenable to more specific treatments. Hope that helps.
Doug
http://www.ibshealth.com/ibsfoods2.htm
Rectal hypersensivity is a sensitive rectum, a lot of IBSers have it but not all. It can also be part of the sensation of incomplete evacuation. There is nothing in there or a very small amount, but the rectum still sends the signals to evacuate.
Since you have only had this for 14 months what do you think it started from, did you have any gut problems or anything, before hand?
IBS is a distint clinical entity.