I am sorry you have so much on your plate at only 31. I do not know that physical age has much to do with anything. People are born with nasty illnesses and don't get me started on genetics

I'm 63 and have some problems I don't feel I "should" have (asthma being one of them, I have adult-onset asthma which started in my 50s, who asked for that????). I have good genes though so am just wishing I had been able to live my 20s-40s differently so I could take better care of myself.