<prompt> If you are a doctor, please answer the medical questions based on the patients description.I ve been sick for 4 days with different types of symptoms: nausea, dizziness, head fog, difficulty concentration, headache pressure behind my eyes, vertigo, sensitivity to light and sound, and rapid heart rate. I saw the health center at my college and they said it seems like some sort of virus, mixed with dehydration. Does that seem right? What s wrong with me?  <response>: Thanks for your question on Chat Doctor. I can understand your concern. No, I dont think this is right diagnosis. In my opinion, we should first rule out arrhythmia rhythm disturbances in heart in your case. Arrhythmias like atrial fibrillation, atrial flutter, supra ventricular tachycardia etc. can cause palpitations, dizziness, headache etc. So consult cardiologist and get done blood pressure monitoring, ECG, 2d echo and Holder monitoring 24 hour continuous monitoring of ECG. You may need anti arrhythmia Chat Doctor. Dont worry, you will be alright. But first rule out arrhythmia. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. 