Resting heart rate in high 90's all the time..is this dangerous? ekg was normal, should i be worried? goes up to 110 sometimes when i go to the doctor

Heart rate, like all: other body responses, controlled Mind↔Brain↔Body. Intrinsic (no nervous or endocrine signals from brain) heart rate typically ~100-120 BPM. When relaxed, parasympathetic orders from brain dominate resulting in slower & weaker heart contractions. With exercise, fear, anticipated need for possible action, etc. sympathetic orders ↑, parasympathetic ↓ & heart rate + strength of contraction ↑.