Urethra inflammation/mouth inflammation/brain fog

still looking for answers !
symptoms-
urethra inflammed constantly
mouth inflammation
sores on tongue
sharp pain on foreskin
blisters on pelvis area
dull stomach pain right side
burning feet and legs mostly at night
extreme anxiety and just alot of mental confusion
swollen neck glands
general inflammation feels like inside torso(travels from stomach/liver/heart)

test done-
std test several times
several blood test
cardioligist
gastro
phuemoligist
nueroligist
rhuemotoligist
oral surgeon (for sores on tongue)

every test came up normal
ive posted on here a few times and i appreciate anyone that has any idea of what i can im literally on my last leg and i feel like its getting worse and im not sure what to do ! thank you if you reply

Have your doctors swabbed the inside of your mouth and checked for any kind of infection?

when i went to get a std check yhey had asked me to swab it myself where i thought the canker was ! and it was all negative

its getting very frustrating i feel these symptoms but i havent gotten a answer to any of this from any doctor