Hey
You are totally normal. Wanted to give my two cents. It is amazing what stress does to the body, apparently it's as simple as a weak immune system due to the overload of the stress hormone. Not dangerous but a pain in the arse.
My dad died in August and I have had so many weird physical issues since. I had a terrible gut for 6 weeks that scared the life out of me, I couldn't stomach food, was always nauseas and in pain, got told it was stress. Then I had bouts of tonsilitis, coldsores and weird lumps in mouth - stress was the diagnosis. My dentist has told me I've started grinding my teeth pretty badly - stress. I then developed a vile rash around my mouth - fungal infection due to stress. Headaches, panic attacks, my IBS is the worse it's ever been and EVERYTHING has been put down to stress. Honestly don't worry, ride it out and as your mind starts to calm down, eventually these issues will too xxxx