I was admitted for low grade fever over 25 days, stiff neck headache, swollen glands, high BP & tachardia. Pulse has been 100-140 & having tachardia. Resting pulse is over 100. After doing labs, cultures, CT scan & X-ray Lp everything came back normal. The doctors believe its a viral infection & are discharging me today. My question is should I be concerned having tachardia & heart palpitations? Docs say its caused by viral infection.