anxiety and the risk of diseases

hey im new to this, but thats because ive never seemed to have any problems til the last 3 months.
im not quite sure if it is a psychological issue or physical. i have seen quite a few doctors the last 3 months, gotten a variety of tests but never got my tests back so im guessing that means they found nothing wrong with me. but about 3 months ago i was drinking with some buddies and i had a few sips and my body seemed to kinda reject it like my body was saying no, but i never puked. i quit drinking after that. but after that i started feeling weak and tired, and it almost seemed as if the right side of my abdomin was swelling, but apparently it wasnt :S. i felt that same kinda feeling behing my shoulder blade in my back and it almost seems as if it is blocking my shoulder blade from sticking out how it normally does. the doctor said it was my muscles. i seem to be burping alot more than usual to, and had a rly bad experience with heartburn that felt like a heart attack. however embarrassing this is, i also have gotten rashes, and some small red dots about 4 of them on my chest, but the doctor said it was nothing to be worried about. i also got a big pimple sized lump on my ass that went away after a few days, and a few months before all of this happened i got a huge lump under my underarm that slowly went away within a week. about a month later all these other symptoms showed up. i smoke weed, and cigarettes, and the occasional cigarette makes me feel like i need to puke but thats rare. then my jaw started to make cracking noises then one morning eating breakfast it made the loudest popping noise ever, since then i feel tension in my jaw, and pain, as well as headaches around my ear, behind my eye, and back of my head, and the occasional ear ache. i also felt my spine in my neck crack wen i moved it once and that scared me but hasnt happened since. my neck has been in pain, and now i feel as if there is a pill sized lump in the right side of my neck, that hurts wen i burp and swallow, my throat has also been very sore as i have also come down with a cold. ive also been constipated and had diarihea as well as tightness in my chest, especially on the right side which seems to hurt even wen i move my neck. my glands kinda feel swollen, and under my tongue on the right side seems like thers a little bump. it also feels like sumthing is wrong with my nerves in my body, and i realise i have anxiety issues to as i get the feeling of "butterflies" alot, maybe once every hour, especially in my gut, but even in my jaw. the other nite i had a panic attack, first one ever i thought i was dying but luckily my sister called me and she has anxiety issues to and knew wat to do. i have been rly worried which probably hasnt helped, and i have been depressed, but i have been depressed for longer then this all has occured. i just dont feel normal, and my brain almost feels like im going crazy. i feel like im taking crazy pills, cus doctors havent been able to figure out wats wrong and i know my body and know that sumthing is wrong. cancer doesnt run in my family so i havent been worried bout that, but im still afraid that i have got some sort of virus in my system or stress has lead to sumthing worse. ive lost alot of sleep to, but i am also an insomniac so its hard to say, but all of this has been driving me crazy i just wanna feel normal again. i think maybe im worrying too much and its just psychological and not physical but its been hard times. if anyone can help me, or give me some advice it wuld be appreciated.