Do you have a history of anxiety? This sounds like a good bout of increased anxiety. The sudden feeling of anxiousness along with the symptoms you described match a panic attack. Once you have one, a lot of times your body is on high alert and will cause an increase in your heart rate, along with other fun and annoying symptoms. Despite the fact your heart rate is usually 60, 70-90 isn't too alarming from my understanding. Usually when it gets to be above 100 on a regular basis is when doctors may become more concerned. I am not saying this is definitely what is happening, but as an anxiety-sufferer, I know how convinced you can became that there is something incredibly wrong with you when really everything is alright.
Unfortunately we really can't diagnose you on the web. You need to see your doctor for that. Does your fast rate start and stop in what feels like one beat or is it more gradual? If it is gradual it very well is something outside the heart contributing to your higher rate. It sounds like your blood has been tested so they likely ruled out thyroid issues. I would ask if you have stomach issues as that can actually aggravate the heart, cause it to act up. Also how much water do you drink? If you are dehydrated that can be part of the problem. Low blood pressure can also be part of the problem. POTS and Dysautonomia are conditions that can contribute to higher than normal heart rate though a rate 70-90s is still considered normal. The other thing this could be is simply anxiety and panic. A lot of your symptoms do seem to point to it so consider whether or not you find yourself anxious and fearful on a regular basis. If so maybe try to see if you can find some good coping skills like meditation and yoga as well see a therapist to help with it. Other than that is is possible your tooth infection is the cause or you are allergic to antibiotics. Unfortunately you must work to rule out other causes to get to the root of the trouble which can take time. I would suggest maybe seeing if you can get a tilt table test to rule out POTS and/or dysautonomia. If these are ruled out it very likely may be something outside the heart causing it to be higher than normal. Either way try to drink lots of water and see if it helps. Best of luck sorting it out. I hope you feel better soon.
Been diagnosed with pots/dysautonomia. Thank you
Heart rate increased exactly by 30. All symptoms match mine. Is this disorder caused by serious diseases? What doctor should I go to to get checked? It sounds dangerous if left untreated for extended periods of time. Thank you
I have pots / dysautomonia,what your saying is along those lines,here is a simple test, not conclusive but a starting point, sit down and relax after a few minutes take your heart rate, then stand up take your heart rate again, if it jumps by 30 points or more thats a good indication of pots. Postural Orthostatic Tachycardia Syndrome, when you stand up or become more active your heart rate will rise,my heart rate will will jump to 130's+ just standing up or 160's + just walking up a small set of steps.signs to look for is lightheadness,dizziness,headaches, shortness of breath,sensitive to light or noise,and much more.most Doctors do not know much about this but Dysautomonia effects mostly young women. I hope this helps good luck.
Blood test came back normal, apart from increased oesinophils
Thank you for answering. I can not feel when fast heart rate starts, only tightness in chest and chortness of breath followed by the feeling of anxiety and trembing as well as humming in my ears. I'm also unable to breathe deeply. I drink 2 liters of mineral water a day so dehydration is not the cause. I was using penicillin for my tooth earlier which eliminated sympthoms for a few days although they returned the next day I stopped taking antibiotics. During the time I waited for my appointments I was taking 4 cloves of garlic everyday, assuming I have some kind of infection in my body, and it really helped for a week. Now I start to have symthoms again in early mornings (5-6). I have another blood test tomorrow and cardiologist appointment after results return. My doctor said they might use halter monitor to see heatrt rate during the day and other tests also. I am very nervous to wait as now believe I have heart infection, since antibiotibs and garlic helped, and sudden death one of the side effects in young adults.