I know I am late for a reply to this but I hope you have found some sort of resolution by now considering this is a year later. When I read what you wrote I immediately had to reply. This will probably be my first and last response on here but I felt it was so important to give you this information that I actually signed up with an account just to write this! Basically, I am a 29 year old female and am otherwise healthy. When I was 25 I had the same adrenaline rushes while asleep and wondered what was happening and could not figure it out for the life of me; it was causing me anxiety not knowing. Many people thought it was panic attacks but I knew it wasn’t. I suffer from anxiety but the two are not the same. I was also completely calm when this occurred. Anyway, months after it started I was hospitalized and then diagnosed with SVT and monitored for several nights before being released. I was then referred to a cardiologist at Mass General Hospital, and I, to this day am prescribed (extended release) metoprolol 50mg daily, and those awful symptoms have completely stopped altogether. I wonder if this is what’s happening to you and no physician is thinking of this because they are not giving you a EKG or one of those monitors they have you wear on your body for 72 hours. My heart was doing all sorts of crazy things while I was asleep and I was unaware of why my body was feeling those rushes of adrenaline and why I felt so wired but then so tired, and like you mentioned, just not myself. Nobody wants to feel like that. Well, my life has been different since being diagnosed with SVT but I’m glad I was or else I would be living in fear like before, still wondering what is wrong with me like I was for months. It is better to know what is wrong in my opinion than to wonder, even if the diagnosis is not all that great. If I could help one person I would feel so happy!! With all of this being said, I truly hope you find relief either way but it is worth seeing a cardiologist to rule out the SVT issues! Wishing you all the best and hoping by now that you have found some resolution to this! I know what a nightmare it can be. Please just know that you are not alone.