Is this what’s happening?

I’m 36F, had 2 kids (youngest is 4 if that’s important). Over the last 12 months I’ve had a whole host of issues. Brain fog, and fatigue. I attributed it initially to having a kid that doesn’t sleep. Her sleep got better but that didn’t help. Then the premature ventricular contractions (PVCs) started. Cardiologist cleared me via ECHO and a 2 week monitor. Had a sleep study done - mild sleep apnea (8 events per hour). Bought the cpap machine and not seeing any improvements. My periods are very light to the point I don’t know when to mark them as started in my app. Labido is so low despite having a great relationship and a partner willing to put in the work to make sure I’m relaxed and can enjoy everything. About 9 out of 10 times, we HAVE to use lube and that’s a newer thing. Is this peri? I thought I’d have more time? 😩 I feel like peri is something that is so hush hush and also so different for each person that by the time women realize they’re experiencing it, they’ve been going through for so much longer than they realized. I don’t have a mom, MIL, or even big sister - So I need someone to tell me what they think and what I should do next lol help.