If you have a smart phone like me I would set an alarm. I take mine every night at the same time. I started years ago and used to miss at least 1 a month but now I could be walking dead and still remember it.

Missing them can do a number on your body (as you have discovered!). Fatigue generally comes along with PMS but if it is severe and you experience mood swings to the point where people don't want to associate with you anymore lol.....it might be PMDD. In which case I would ask about Yaz or the like.

I used to get ruptured cysts a lot and had a battle with figuring out birth control type and dosage. The higher dosage was doing a number on me and for whatever reason my body was increasing my testosterone levels and causing me to break out, gain wait and I would have a cyst rupture at least once a month. I went off bc, back on, switched brands, went up and down on dosage, dieted, change everything about my lifestyle and eventually (about 3 or 4 years later) found a program that worked for me. It takes time but be persistent. It's YOUR body and do whatever you can to have a doctor listen to you. There isn't a reason for you to feel off like this every month. Hopefully you get some help! Good luck!