hello, i am 17, kind of chubby, with borderline high blood pressure as my doctor puts it. and sometimes when i take a shower, for an extended amount of time (i have to stay in about 20 mins when i have to wash my hair as it s pretty thick and long) I start feeling out of breath and slightly weaker, but once i sit down and catch my breathe im fine, i never get out of breathe normally, but would it be cause by the steam in the room, or the length of the shower, or should i go to my doctor and get it checked out?