Masturbation Problems

Hi I'm an asexual girl and have never really enjoyed masturbation, when I started HRT I had read that I would need to masturbate weekly to maintain the ability to get hard. I tried but I just didn't feel enjoyable and felt like a task that made me feel terrible. I did pick it back up and try again a month-ish later but now it felt sore when I get hard. Like a stiff pain but I could still work through it to completion. The orgasm sucks and doesn't feel worth it for all the pain it causes. Is this normal? or do I need to see a doctor?