how do you deal with being in a vulnerable situation

i'm in a bit of a predicament, i live alone as i have done for 20 years....my main support system, my elderly mum and dad live far away now...and i generally have to cope alone and just recently i've been given health appointments i have to go to.....one is to get a 24hr blood pressure monitor put on at my pharmacy....and 2nd i have an appointment at the hospital just recently with the cardiology to check something with my heart......have a heart investigation....so i wondering what i'm going to do and how i will get there?

i have a good gp fortunately so im going to phone him tomorrow to talk about it with him.....but i suffer with severe anxiety as it is and i'm really worried and feeling overwhelmed at the moment.

how can i get my head together and be a man about this? i feel so much fear right now.