I didn't get my first period until I was very late 14 or early 15, one of the last in my class and groupd of friends outside school. It was an all-girls school so things were a lot better for us than I hear they were for my coed friends, just the sheer number of girls around meant there was always someone with spare supplies to hand if needed. And they frequently were.
I didn't have any particular problems at first, though I'd had migraines for years. It was only after I went to England on a hockey tour just before Christmas (when I was 15) that things got bad for me. It took years for the medical stuff to be untangled but that trip is when I had full onset of my sleep disorder, Narcolepsy with Cataplexy. The period stuff was just small potatoes compared to the sleep disorder but at the time, the specialist put my symptoms down to, I kid you not, "being a teenage girl, adjusting to the bodily changes" and things "should settle down once you're used to getting your period and also once you have counselling to deal with your troubled family"... yeah, no. That well respected specialist got the full benefit of my A+ marks in topics such as debate and argumentative essay writing, and on one memorable occasion I verbally ripped him and his obnoxiously stupid diagnosis, treatment suggestion (anti depressants.. no, he didn't think I was depressed, it "just sometimes helps in these difficult cases"), and overall behaviour towards me. I wish smartphones had been around then as my mum would have recorded it. I was, to quote her, "glorious" and she "couldn't have said it better" herself, which she said so when the fool regained his composure enough to speak. And turned to my mum, as though he expected her to tell me off.. patronising ****wit.
After that dreadful experience I had much better luck. My periods were painful, sure, and the migraines that came with them were unbearable.. but since I was unable to function even when not menstruating (or either side as I get a migraine 1 week prior, 1 one day 1, and 1 a week after).. really, periods were the least of my worries.
Once I was properly diagnosed just after I turned 20 and we found a workable treatment (another couple of years), I was all good. The cramps and associated migraines were annoying but I made things work and kept the pain at bay with just basic paracetamol and ibuprofen. I can't take the pill as thats contraindicated for migraines with aura, due to the hormonal link. I'm also allergic/intolerant to codeine and opiates so can't take the usual migraine meds. I went through a *lot* of jars of tiger balm, I don't know how I'd have survived if I hadn't been given that to try at 17, it's the best! That and wheat-filled heatpacks, one for my tummy, one for my back, are my go-to method to this day.
I studied and worked for years with no problem, until my workplace turned into a stress-fueled nightmare. I stayed far too long trying to keep going for my children and my colleagues who were trying as hard as I was.. but it took a huge toll on my health. We all thought it was just stress, and I'd recover after I resigned and had time to rest. But things got worse, and my partner and I realised things were really wrong when my cycles became so frequent they just never stopped. I was referred and they immediately suspected endometriosis.
Internal ultrasounds = THE WORST, MOST INVASIVE MEDICAL PROCEDURE IMAGINABLE. I had no idea that was a thing... so bad. On the up side - they found all kinds of things to document which meant they could diagnose the endo prior to surgery and have a lot of info to plan with. On the down side - to measure and thoroughly assess everything they recorded, *they tried to manually detach my ovaries from my uterus, each other, and my bowel with the wand and their hands on* my belly, pressing and trying to "unstick" things* ... please consider yourselves warned. I wish I had been. I mean, they were doing their job and I'm glad they were thorough, really! I just wished I'd known before I was told to go to the bathroom after (I thought) just finishing my ultrasound...
*edited to "on" as somehow it said "in" which would have been a lot worse, if that's possible!