From last couple of months, I feel like my heart beating rate is more than usual. After some days my heart beat more than ever and I can feel it, it's make me uncomfortable then I decided to go doctor he advised me to do an ecg, after the ecg report he tells me I am suffering from right axis deviation (i don't what is that) and he prescribes me half tablet of alprazolam + fluoxetine hcl tablet for ten days. Please help me what should I do?