hello I am a 25 year old male in the chicago area and I was hopeing maybe some of you could help me, it would be so greatly appreciated. About 4 years ago I came down with the most horrible food poisoning after eatting a gyro in wisconsin and after that my life hasnt been the same. I was sick out of both ends for a period of about 5 days. However it didnt stop at that. I was scared to death to eat when the sickness started going away. I dropped mass amounts of weight and became tired all the time due to bad nutrition. so I started forcing myself to eat and slowly got back into the habbit of trying to eat regular meals. But somethin just wasnt right. Every time i would eat my stomach would sound like a boiling pot of water and I would become extremly gassy (both ends) yea it is some embarrasing stuff =/. The years have passed and I have been maken myself deal with it because I just simply cannot afford to go see a doctor. I have lived on my own since I was 16 and do not have much family at all to turn to for help. heres my everyday symptoms.
1) boiling pot feeling in my stomach its so noisy and feels almost like the water is running over in my stomach.
2) constant burning usually in my chest sometimes lower abs.
3) gas gas and more gas (both ends) never any fun.
4) diareah on a rare ocasion but usually feel more constipated than anything else.
5) burning sensation in my throat like I can feel the acid going up my chest.
6) akward sleep paterns, sometimes I just cannot sleep at all no matter how tired I am.
7) sometimes its hard to swallow and I stress so bad I get light headed. Yet other times I dont feel stressed at all but have the same symptoms.
An extreme full feeling at times after eating like I just have to keep belching to let the air out.

Do any of you share the same symptoms? Can anyone give me advice as to who I should talk to so I can go see a doctor? Payment plans prolly wont work for me cause my credit is shot from when I was a kid trying to make it on my own.

A few thngs about myself-
1) I do smoke (yes i know stupid) but its sooo hard to quit as I light a ciggarete when I feel stressed out and it became routine.
2) I drink alot of caffeine to make it through my day because im afraid to eat and go to work so my stomach doesn't act up on me while im trying to make a living.
3) My teeth are in horrid condition. Last time i saw a dentist he told me my teeth arent producing enamel and i need to get them taken care of ASAP. I just do not know how i can afford all of this. I feel so stuck. I try not to let it break my because theres always someone who has it worse. I just dont know how to fund and or approach a way of getting the funds to fix my health.
4) I went from mr. active to mr. 25 year old video gamer haha. My stomach plays a big factor in the never really leaving the house. And I have lost so much weight I almost just feel embarassed to leave the house.

Anyway any advice would be great. If you have none to offer thank you very much for taken the time to read this anyway. I just feel so alone with all my stomach problems and I prey every day im not going to find out its cancer or something. If you have had similiar experiences with your stomach and have talked to a doctor id love to here what was said and what the diagnosis was. Not like it could fix me of my stomach problems but maybe give me some of an idea as to what im lookin at instead of always just guessing. Thankyou again everyone.