@nephilim_sammy Have you had a halter monitor for your tachycardia yet? Many of those symptoms can be related to heart health. I got a 15 day one to rule out white coat syndrome and it turned out my average resting heart rate was 112. I was having dizziness, fatigue, and nausea unrelated to my other issues which cleared up once they increased my propanolol. Chronic tachy can lead to a higher risk of afib too so it's good to get it checked anyways, make sure you're not skipping beats.