Sore on roof of mouth discharge

so a few years ago i had poision ivy on my private area (which made my penis very itchy and scaly) i recieved oral sex from a sex worker and the next day i threw up and was pretty ill, then i was okay for a few weeks then i formed a bump and sore on the roof of my mouth along with other std like symptoms. fast forward a few years (about 10 years) and i started feeling very sick again (pain in liver area,urethra and penis inflammation,tongue sores and inflammation,feeling of fluid in left side of chest etc. ) i thought for sure i had a std but i never got tested until about a year ago and about 5 times within the past year , everything came up negative except for herpes ! so here i am barely able to work im so confused i have no memory my urethra poures out clear discharge ,my penis(foreskin) burns when i masturbate ,and that same sore from years ago is constantly inflamed ! ive seen almost every specialist , so i dont excpect you guys to give me a cure since all those doctors cant but what can a sore/tiny canker on the roof of my mouth be ? it hasnt healed in ten + years and why do i have urethra discharge and inflammation without a std ? any advice would help i just want my life back guys . thanks in advance !