need body odour help

Hi,

I've been suffering body odour for the past 2 years.
I'm gonna get straight into it.

I've tried loads of things.
Recently I've had a constant pain in my stomach after I eat or drink anything.
My doctor said I have IBS but this pain just appeared AFTER I tried the gluten free diet.
It feels like Food or liquid travelling through my intestines.
This odour came around the time of puberty at age 13 which is weird. My diet was really really bad around that time and I would hardly chew my food.
I'm now literally starving myself and hardly eat to try to kill whatever is causing the odour, by going low fodmap, protein, carbs and Sugar and starch and no gluten. The pain in my belly is starting to bother me.
I don't know what to do because I have been having all types of bodily symptoms. I've had constipation, really bad and smelly flatulance, i believe I also have bad breath. One time someone told me I smelled like kebab, and it's weird because I had had kebab the night before which leads me into thinking I have leaky gut. This diet I am on is really killing me and I don't know what to eat. I'm basically just eating broccoli and chicken with maybe one fruit to possibly allow my gut to heal, candida to die and odour to die.

I have no clue what to do now. Can someone please suggest what could be wrong with me or what I should do / get tested for.
One thing I've noticed is I've had a lot of brain fogs and constant congestion where my nose is not really runny but I always have to like kind of breath it in and swallow like its mucous or something.
I've also lost a lot of weight and I've been on weight gainers where I was taking more than it stated and I should have put on at least 10kg but instead I lost weight.

I am planning on following this diet and buy:
Probiotics
Liquid chlorophyll
Colon cleanse
L-glutamine

Finally, I'm also on iron and vitamin d3 tablets because they were really low and my coeliac and wheat blood test came
Back negative.

Please please help me I'm on the edge of suicide and we've got a family holiday next week I'm dreading because of this odour. It's weird because I can't smell the odour and neither can my family and it doesn't matter how much I shower.

If anyone can get contact with me via Skype or email to talk about this body odour issue please PM me

Thanks so so much