Am i at the right weight for my height?

I am a 22 year old woman who is 4' 11". I am built with a broad stature. I know I have always had a lot of muscle m. I have always exercised and ate healthy. I used to weigh about 130 pounds. 8 months ago I began exercising more rigorously by using a piece of gym equipment called a Gazelle and by walking when it was warm out. I tried to exercise everyday by doing a mile. At that time I also started working at a Price Chopper as a courtesy clerk constantly lifting heavy items into carts and bagging items. I was always on my feet doing physical work. 8 months later I weigh 140 lbs. Even though I exercise and eat lots of fruits, veggies, and meats. Have a gained weight from added muscle from hard exercise and my new job?