How are you suppose to know if you have fibroids?

Get an image taken: Fibroids are benign masses of the uterus. They are seen on multiple imaging tests. They can be seen on xray, ct, MRI and ultrasound.

See your doctor: Problems like these can only be correctly handled by your doctor in person. He/she needs to listen to you, perform an examination and possibly run labs or other tests. That's the only way he/she can find out what's going on and what to do about it.