<s>[INST] I am 26 years old and otherwise healthy. This morning I woke up extremely dizzy to the point that no matter what I did, the room felt as though it was spinning. I had my blood pressure checked at 9 am and it was 133/86 and my heart rate was 104. I checked it again at 3 and it was 134/90 with a hr of 83. I also have a knot on the side on my neck that has been there for a couple days. I had a sinus infection last week, but have already finished a round of antibiotics for that (amoxicilon 875mg x2 daily). What s going on with me? Should I be concerned, and should I be seen in person by a physician? [/INST] DearWelcome to ChatDoctorWe understand your concerns went through your details. I can understand. You are a youngster. Heart rate is dependent on stress and anxiety. Due to your sinus and related problems, you could have become highly stressed and anxious and that coupled with the spinning could have created the high heart rate. But 104 is not that high a heart rate for a person under treatment. Please don't be worried and anxious. You can always talk to your physician regarding this. If you still need my assistance in this regard, please use this link. http://goo.gl/aYW2pR. Please remember to describe the whole problem with full detail. Hope this answers your query. Available for further clarifications. Good luck. </s>