Why have I smelt like caca for six yrs. and why is it getting worse!?

[SocialIssue]

Soooo... Such a long, depressing, frustrating six years... I remember the first day it started. I just thought it was because I was digging holes in the sun all day but the stench was there to stay. Please do not respond with foolish answers. I have a head of my own and I am not stupid I am fully aware that I am responsible for my wrong doings and I could make things a lot easier on myself if I quit doing drugs but at the moment, that just not in the stars for me. Plus I've quit for 2 yrs and still the problem was there light weight. I started doing drugs drugs right after my 14th bd. (Tweak). Problem started when I was 15. A friend who got me high all the time had this problem way before I did. We never talked about it but I defiantly noticed his stench because he lived in a little tiny trailer full of stuff. On top of the limited space this place was always full of dope smoke for hours even days. I ignored it because I didn't want to make him feel even more uncomfortable than he already was. I had no idea ur could or would spread like a contagious disease. (Still don't know that) Anyways I am 20 years old now and never had 1 cavity. I've always had really good hygiene. Brushing my teeth, taking multiple showers, wearing deodorant, having clean clothes. I know my nervous anxiety and worrying make a major impact on how potent it is but it's almost impossible for me to not worry about it. Unfortunately I care way too much about what people think and vanity. I'm attractive and was used to feeling like a bad ***** lol. Now I just want to dig a hole  and crawl in it. The past six years have been bad but as of 11 months ago it's so severe I can hardly stand to be around myself. I didn't used to be able to smell it on myself but really do now. Dope intensifies my negative thoughts about it dramatically. I used to think the odor cam directly from the dope not mixing well with my body and lacking hydration. I did notice a difference niece when I pounded hella water throughout the day though. I think I might have parasites. A severe case perhaps. My poo has Ben green yellow black and mucusie lately. 4 months with hardly any solid stools.