Home > Experts > Question Question Posted by: Anne | 2013/04/22 Nocturnal Tachycardia I experienced sudden severe palpitations and breathlessness on three consecutive nights this week, just as I was about to fall asleep. The episodes lasted about a minute each but it felt like I was about to have a heart attack, as my heart was beating EXTREMELY fast and I was gasping for breath. It was NOT a panic attack, as I was completely relaxed immediately before the palpitations and gasping started. It was also NOT triggered by stimulants as I have been off all stimulants for about 10 days already and I don't even drink coffee or alcohol anymore. I am also 100% sure that I did NOT forget to take my daily beta-blocker (Inderal), which I take for anxiety related palpitations. It is also NOT menopause related, as I am currently on Estalis 50/140 (HRT). Nine years ago I experienced the exact same symptoms quite a few times just after I moved to another province. It was also always just as I was about to fall asleep. After continuing for a couple of weeks, it stopped, but has now started happening again after a 9 year interval. What could be the cause? (I am 48) What is really freaking me out is that I recently changed GPs and my new GP insists that I have been on the beta-blockers for far too long (29 years to be exact - I was 19 when I started taking them for an anxiety disorder). He now wants to take me off the Inderal LA 80mg (to alleviate the fatigue I am suffering from) but, if this is the way my heart behaves even in spite of the beta-blockers, how much worse will it behave once I am off them?? Not what you were looking for? Try searching again, or ask your own question 1 Our users say: Posted by: Zebra | 2014/10/14 You have a dysfunction of the autonomic nervous system that might be related to Ehlers Danlos Syndrome. Are you hyper mobile or double jointed? Google dysautonomia. It is common for people who have EDS and dysautonomia to have this problem at night. There is a video presentation on it by Dr. Alan Pocinki if you google that. Good luck. Reply to Zebra Have your say Your name (optional) Your comment Security × Thanks for commenting! Your comment will appear on the site shortly. Search health advice Find an answer × Thanks for commenting! Your comment will appear on the site shortly. Reply to Your name (optional) Your comment Security Close Submit comment Recently: Asked Questions Answered Questions Commented Questions Neglect and emotional abuse to a toddler Hi ,I had unprotected sex with someone that I paid,after that night I went to the Dr in the morning and I told him everything,then he gave me prep tabs to use for 28days, I just want to know if this w Lymph Nodes in my son's neck Oralquick and should I use PEP? I need a drug for loosing weight that is also an appetite suppressant can i use 2.5ml ponado at night times to calm my 3 month baby that is teething switching from S26 AR TO NOVALAC AR 9yr old boy Short, recurring pain on left side of chest good day doc my grandmother is 76 years old and is suffering from ulcers and back pain can she take procyden Hi im on depo for one month now and have gained 7kg despite of the fact that im using herbex slimming products.What can I di to stop the weight gain? Hormone Working for 4 years on Contract Not sure if my boyfriend is in our relationship My son is on a hunger strike because he got braces advertisement From our sponsors Managing diabetes in the workplace Back-to-school with diabetes Discover treatments that can help reduce acne What can I do to reduce or remove acne marks?