I am 33 years old. About 2 years ago I had a huge cyst removed that was connected to my left ovary &
Uterus. My dr was able to remove just the cyst. But now every time I get my period the left side where cyst was hurts. Sometimes the pain comes even when I don't have my period.
What could this be? It takes me months to get into see my regular dr. Could the cyst have returned? Please
Help... And the pain is only on left side

If it takes months to see this doctor, you really need another more accessible gynecologist. It is possible that you have scar tissue pressing on a nerve, a new cyst, fibroids - just about anything, but a lot could be seen on ultrasound, and any doctor can do that or order it. If it's scar tissue, it might hurt most when you have the most water retention. Unfortunately scar tissue is basically there to stay, because more surgery just creates more scar tissue. At least rule out a mass.

I agree with the above post. It is a possibility you have a cyst again as well. Or it can be unrelated - kidney stone or something like that. Your doctor should have some appointments available at shorter notice for sick patients. Tell them you are ill and they'll get you in.