fast, pounding, or uneven heartbeats;
feeling light-headed, fainting
pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure); or
tremor, restlessness, hallucinations, unusual behavior, or motor tics (muscle twitches).
A HR of 98 would not be serious in normal circumstances, but I'm not sure about if it's chemically induced. You say " I also have a "normal abnormal heart rate.