Combination birth control pill and discomfort wearing contact lenses

It’s been years since I used birth control because I’m in my 70 s. At the time I was satisfied because I didn’t want to get pregnant again except that the one time I did get pregnant I had an abortion and I regret that very much

I never know when I'm just "overreacting" or when it's the effect of birth control. However, depending on the time of day I take my birth control, I may feel headache or nausea symptoms and it tends to be pretty obviously connected to the birth control (i.e definitely not because of anything else).

I'm feeling headache dizzy and sometimes have no energy to walk even.i loss alot of weight from 55 kg to 47 kg.feeling tired everytime,unrine leakage problem,mood swings angry mostly.