Period craziness

Does anyone else have super irregular periods? Mine will come and stay for like a week or two, then I won’t have another period for about a month and a half (I’ve been clinically diagnosed with irregular periods and endometriosis). I also get really bad back pain, and super bad headaches. I used to be on birth control, such as the implant, pills, and depo, (all at different times of course) but I got off about a year ago because I hated the side effects. If y’all relate to this, how do you manage back pain/headaches and what do y’all do in these types of situations?! So over it!!!