I still get tired very easily even though my IBS symptoms are gone?

Here's my overview: http://www.ibsgroup....edundant-colon/

Long story short;

I was diagnosed with redundant colon & slow transit constipation and IBS-C after the colonoscopy. I had a surgery done for my rectal prolapse.

Around the time when I started having bowel problems, my energy level also dwindled. Even after the surgery, my energy level hasn't improved much and I still easily get tired.

I'm worried that my foolish mistakes I made in the past is the reason why I have so many health issues;

At the age of 14, I drank 1 can of alcohol due to a bad influence from my father. I didn't get wasted but I'm worried about what it did to my developing brain.

At the age of 14, I fractured my collarbone during soccer and now I have to frequently crack my shoulder to release the build up of tension. It's uncomfortable and annoying but the doctor doesn't think there's anything wrong with it.

At the age of 20, I foolishly decided to take 500mg of ALCAR for 2 days. And I also took 500 - 700mg of L-tyrosine in empty stomach, then 300 - 500mg again the next day. The ALCAR gave me a strange feeling around my throat and L-tyrosine gave me a strange unnatural euphoric feeling for 30 minutes which scared me.

At the age of 21, I have accidentally drank too much coffee to the point where it made me have a migraine for up to 7 hours. It might have been a caffeine intoxication.

I used to get better grades than my younger brother up until grade 10. But after fracturing my collarbone, my grades slipped significantly and I failed almost all of my subjects and it has been a downhill since then. I now can't even handle college while my younger brother can. Perhaps I just have bad genetics?

I'm not sure why I easily feel fatigued. I was tested for celiac disease but it came back negative. Could my tiredness be caused by my weakened bowel?

Post Edited (Heinstein) : 6/10/2014 8:49:42 PM (GMT-6)

I had a S-Thyroid function test(free T4 and TSH) as well as iron studies and both came back as normal according to the doctor. I heard that you could still be hypothyroid and have normal T4 and TSH, should I ask the doctor for a T3 test?

Another important thing I didn’t mention was that I have a extremely difficult time waking up early.

Four years ago when I used to attend community college, I didn't have any problem waking up at 8:30 am. But now, even if I exercise, sleep early or avoid caffeine, I cannot wake up naturally until 11:00 am or 1:00 pm. I have managed to wake up naturally at 9:00 am a few times but I always feel sleep deprived and need to stay in bed longer to feel refreshed. Basically, no matter what I do, my sleep schedule goes back to falling asleep between 2:00 am to 4:00 am and waking up between 11:00 am to 1:00 pm. I’m beginning to suspect that I might have delayed sleep phase disorder.

I decided to go caffeine free for a week to see how it affects me. It’s been 7 days since I’ve been abstaining from caffeine and while the withdrawal headache and lethargy went away within the 5th day, I still feel mentally fatigued, I can’t concentrate on anything intensive(like reading books) and I feel very slack all day and even feel dizzy/confused if I have to get up and do something. My sleep hasn’t improved either. I realised that I literally cannot function at work or school without caffeine and it scares me.

The only issue I’m having with my bowels are that I still get hard stools due to my redundant colon and slow transit constipation. I also still feel tension in my rectum after the surgery which I wish I didn’t have because it’s slightly uncomfortable. I can’t get stressed too much otherwise my stomach stops functioning properly. My stomach gets bloated a little after eating but not as badly as it used to. But other than that, I don’t think my bowels are affecting my daily life but I could be wrong and I might just be unaware of it.

Am I just one of those people who needs caffeine to function daily or could I have a underlining health problem that is making me dependent on mental energy gained from caffeine to function?

Also, I don't think that anything you mentioned in the first post would affect you long term. Again, I'm wondering if your anxiety is affecting your sleep.