Can I still pray and fast?

I really need some guidance on my situation. I have a problem where I bleed all the time sometimes it's light, and other times it's heavy, but overall, I’m constantly on my period. I’ve seen doctors, but they haven’t been able to help much. However, I believe birth control can regulate my period, and the doctors suggested I take it. The problem is, I don’t want to risk my health by taking birth control every day, as I don’t think it’s healthy. So, I’ve just been living with this condition. My question is: Can I still pray and fast? I stopped praying and fasting because I believe this blood isn’t pure it feels like my body is detoxing and getting rid of bad blood. Can someone please help me understand what to do in this situation?