My body is destroyed & my period is irregular.

I'm 18F. Lived my life healthy and normal, got my period young and have never missed a month. Come 2025, I started getting colds frequently and as the months persisted it turned into: Vertigo - feeling like im spinning, motion blur Headache Mind fog - cant focus or think Digestive issues - bloating, air in my chest, burping even after just a sip of water, constipation & not consistent stools Waking up with eyes burning & watering ONLY AT NIGHT (has been happening on and off for maybe 2 years) Eye pain Not getting enough circulation Light sensitivity Body weakness Fatigue Sensitive to touches, every little thing hurts Shortness of breath Rapid heartbeat Hurting to breathe at random times (may be due to trapped air) Pain, veins cramping starting in the legs and it moves to my arms, chest, fingers. When I touch the area where it hurts, it feels sore and slightly numb Been feeling crunchy Random spots had shown up on my skin Rash on my body After the 24/7 pain subsided, my right thigh on the outer part started spasming. It seems to happen a lot if my leg is bent in some way Ear twitching when I lay down on my side Ear pain The only thing I have been diagnosed with is BV & deficiency of b12, b9 and vitamin D. I have been consistently taking a prescribed dose of vitamin D & b12 and b9. It seemed to help some but is not curing me at all. Not to mention, October I got my period, November it didnt come at all. Then December I got it. January I got it but now February it seems to be skipping again because it's 7 days late with no indication to be coming. I have no idea whats happening to me.