Constant lump feeling in throat and ibs

Hi, I was wondering if anyone ever suffered from a constant lump like feeling in the throat.  It feels like there is a constant need to 'cough up mucus'.  There is very slight mucus, but I'm unable to get rid of this feeling.  It's been over 2 months now.  Now, I'm suffering from intermittent loose stools...not really diarrhea, but intermittent loose stools/constipation, (also there was a horrible pain in my lower left abdominal area before the lump and/or diarrhea started).  I wasn't really suffering horribly with heartburn or gerd-like symptoms when the lump started, but I have had problems with heartburn in the past.  I've been off and on prescription prilosec for the last couple of years.  I saw my regular doctor, who did an x-ray of my throat/neck, found nothing, and saw an ENT, who did the nose/throat scope and also found nothing, but told me that it was probably heartburn related, and increased my dosage of heartburn meds.     

I was taking some dietary supplements for a few months prior to all of this starting...a dietary supplement called Excellean (which contains a combination of different omega acids that are supposed to burn fat), and another one called 7 Keto Trim, which is supposed to stimulate the metabolism.  I was also taking probiotics...very stupidly...just to keep yeast away...(I've suffered with occasional yeast infections nearly my entire adult life).  The probiotics only seemed to cause problems for me.  I was  pretty regular with BMs until I started taking them.  It caused constipation and very bad gas.  I took them for over a month, but stopped all of the supplements when the lump feeling began. 

I am very worried that there's something seriously wrong with me...that maybe it's the heartburn meds, causing diarrhea-like symptoms...I'm also concerned that I might've done damage to my thyroid with these stupid supplements, or that maybe there is some weird bacteria overgrowth due to the probiotics.  Doctors won't tell me anything other than to stop taking them (which I did).  If anyone has experienced anything similar, please talk to me.  Any input would be very appreciated. 

Hi, thought I would offer my two cents, that's probably what my response is worth .

I have IBS, and have had chronic recurrent sinusitis for 20 years with 5 endoscopic sinus surgeries.

For one year prior to the onset of IBS symptoms I had a recurrence of sinusitis with a new twist, I

had a sense of localized swelling in my throat, that felt like a small golf ball, and an intermittent

alteration in the strength of my voice. I was told that I had what is known as globus hystericus, and

intermittent right sided vocal paralysis. I was advised to decrease stress; ct scans of the sinus

were pronounced normal. Sinus symptoms, headache, congestion, burning eyes etc. did not respond

to traditional therapy. As I am a bit obsessive I continued to seek evaluations, was diagnosed with

Gerd. ENT upon being advised of the Gerd diagnosis said that this could trigger the globus sensation and irritate my sinuses. GI docs don't believe

that GERD can cause sinus symptoms, while some ENT's do, so my GI thought I was nuts, and my ENT doc thought I was nuts too, but not because I attributed my sinus problems to Gerd.

I too had the constant sinus drip into my throat, and was advised this could be triggering

the globus. Acid reducing meds (H2 blockers, and PPI's did not help Gerd) and ultimately my "normal"

sinus ct was read as a localized infection requiring surgical drainage. Surgery was performed, post op

I was told that the amount of infectious drainage was so significant that the surgical team were shocked.
The Globus and voice changes went away within weeks, although the inflamed sinuses and sense of burning of the

esophagus remained. I am currently considering a surgical procedure as a last ditch effort to address

the gerd symptoms (Nissan Fundoplication) which may make me better, or has an equal chance of making me worse.