With the number of comments on this post, I doubt anyone will read this, much less the OP, but I feel compelled to say:
GO TO THE FUCKING DOCTOR!!!
If you're noticing something wrong or different with your body, go to the doctor to rule out something medical. Then continue your investigation. A doctor wouldn't try to diagnose you based on what you've written in your original post, so I wouldn't weight too heavily the opinions of a bunch of NON-DOCTORS with zero skin in the game.
GO TO THE FUCKING DOCTOR!!!
If you're noticing something wrong or different with your body, go to the doctor to rule out something medical. Then continue your investigation. A doctor wouldn't try to diagnose you based on what you've written in your original post, so I wouldn't weight too heavily the opinions of a bunch of NON-DOCTORS with zero skin in the game.