Sounds to me like you could be having sudden drops in blood pressure. I started a supplement regimen after 18 months of sitting alone in the silent dark room with a migraine that never ended, impossible to move without running out of air and feeling like I'm suffocating and severe chest pain so so painful, profuse sweating and exhaustion from just turning over in bed to look at the clock. Brain dog was bad and dizziness too. Many people suffer problems like these from simply just having too much ear wax in your ears. Earwax can even cause dementia like symptoms. Try light excersice if you can do a few minutes a day I have been having drops in blood pressure causing me to have symptoms like a narcoleptic please be sure your not taking anything that lowers blood pressure more. Your doctor's probably won't ever find this problem if it's a sudden drop. And just the movement and walking up to see the doctor will raise your blood pressure enough to mask any drop you had earlier. You all are lucky to be able to see doctors. Our medical centers refuse covid patients or anyone with the sniffles. I was turned away at the door when I answered yes I have difficulty breathing from long covid. Another time I had to walk their. It's always winter the walk was 15 minutes and my skin was too cold to read my temperature with their point and shoot thermometer they turned me away made me walk back home. Was all set to get my lungs checked cause the severe pain and suffocating whenever I move. It wasn't just hard to breath it is as if I was suffocating unable to get enough air in my lungs. After I started my own treatment plan with only a very small handful of companies that make supplements because the vast majority barely put any of the real medicine in them. I could tell with the oregano soft gels. Good oregano product causes slight flushing and sweating because oregano is actually a very very spicy and you'd never know it eating it as seasoning. I got no warm flashes and was on my plan for a month ish. I knew it should have worked by that point if at all. It cost me a bit of money and it's a tough schedule but working.. I have taste and smell back and energy and I bought this device you breath into it. Breath in normally breath out into the inhaler type thing which oscillates and breaks up all the mucus in the lungs I coughed stuff out for days chunks of hard stuff too. I'm scared of what came up. But the coffee enema saved me. I do one every day and every day makes me feel better. If I'm sore or feel a migraine I know that it's not gonna stay cause I can't believe but my regimen worked well enough to allow me to have raked my entire wrap around yard still full and uncut since the first day you could see the grass. 18 months sick. A week on these supplements and I raked the whole yard with just two short breaks and water and I didn't immediately need to rest for a few hours before I could even think about trying to crawl out of bed. I think too much damage has been done since they refused to see me for over a year. Their is no reversing it and hopefully any blood clots will just go away and not kill me. They can be the only explanation for pain like that in someone's lungs doctors have literally told me to go die somewhere else and make my body their problem before so I already know that when I do come into a life or death situation again and I had to rely on our hospitals I'd stay home and die, no point in even trying when they've made it clear that a junky like me isn't allowed the privilege of being healthy