Hi, I think you have two or three problems which are bothering you. I suggest you should check your blood FSH levels to judge your ovarian function ( to investigate your hot flushes & migraine
) and also get one ultrasound
scan done to rule out any pelvic pathology as a cause of your abdominal pain
and period problem. Please also check your urine DR to rule out any pathology in the lower urinary system
which might be causing your pain and urinary frequency. Meanwhile you may take any pain killer you commonly use at home. Take care.