Resting heart rate higher. Heart rate?

I am 30 year old healthy/well physic male, working in Oil Refinery maintenance. I do not smoke & do not drink at all. I am wking up on 5.30am, I go yo gym 6 yo 7am and job 9 to 5pm and sleeping 10pm. Drinking 3litre water on daily basis. I am following the above lifestyle from Jan-Feb 2018. Even after this: I have noticed that, from almost a year, my resting heart rate is 110bpm, Not even 95bpm. Because of the higher pulse, It gets too high in a little excitement,or physical adventure activity like trakking or going up down on stairs. Acidity and frequency headache also being noticed,So is there any link between this and heart rate?? I have started taking: Becadexlmine tab. Live52 tab. Omega derp sea fish oil softgel Ashwagandha tab. Protein whey isolate (taking of good quality from 3-4years in precise qty) Now I am not able to understand what is left or what I sm doing wrong and what is the main reason behind it. So please guide and kindly pinpoint the main cause behind it.