Hey guys could this be a sign of an oral std or worse Hiv/aids?? Ive been obsessed with the thought that I have an oral std and aids.... Ive gotten numerous blood tests done everywhere (doctors, hospital) & they always say my results are normal but IDK if they have checked for stds or aids in my blood especially at hospital.... Im guessing if they always say everything is fine then I dont have that but my health anxiety plays tricks on me.... what could It be ?? 
About a momth ago I think my doctor had me do a urine std test everything normal..
I got canker sores after eating spices. It happened 3 times each time after eating turkey burgers that I bought and I don't known what spices were in them but my doc said it's defo an allergic reaction. Not sure how I suddenly developed allergies but after I eat tomatoes I noticed my bottom lip swells a little and my stomach gets soo upset so naturally I've stopped eating both.
I wouldn't worry if it's only one sore. Everyone gets them at some point. It may be a cause for concern if you keep getting them like it can be a sign of celiac for example.
Ohh alright, I think I have developed seasonal allergies not food allergies tho & I seem to get GERD a lot but thats about it, ive gotten a stomach xray even a rectal exam & the hospital only gave me prevacid
I think gerd can also cause sores to develop. But if you have had all those tests then I really wouldn't worry about STD's or HIV
Thank you, take care !