Sick? Should I be worried?

cierra
I went to the doctor Wednesday for something completely different but when they took my vitals my temperature was 101.2F and my blood pressure was low 110/70 and my pulse or whatever was low. My doctor said my allergies could be causing me to feel like that but they've never been that bad and now my mom and grandma are feeling sick from me. I was prescribed to Azithromycin, Prednisone, Certrizine, and Flonase. I feel a little better today than I did Tuesday through Thursday but my heart rate and breathing feel kind of low or slow or something? Idk how to explain it but I feel that I have 0 energy and my breathing just feels weird. Idk what to think of it and I think my doctor had no clue what she was talking about cuz I'm definetley sick, I've been feeling worse now than when I had the flu. And allergies aren't contagious lol. Does anyone have any advice or know anything? I feel like straight butt.