Anxious over health

Alright had a hospital trip yet again because I almost passed out from standing for less than 20 minutes. Everything came back normal except for my Bp which ran 89/58 and then ran 100/50 while I was there the first is extremely low and the second is still pretty low especially for me... It's kind of worrying me. They said low Bp is normal but mine usually runs on the high side of Normal not the low side of low.....