look... seriously, don't waste your money and time going to see a doctor. trust me on this... you're just out of shape and need to get more exercise and eat right. your heartrate is high, but it's not abnormally high (unless your resting heartrate has always been around 70 or something in the past).
the more sedentary you are, the higher your heartrate will be. the more active you are, the lower your heartrate will be. like i said, your heartrate is high, but it's not worth seeing a doctor about. if it goes higher, to about 110-120 within the next week or so, then you should see a doctor.