Should I see a doctor?
I decided to start counting calories. I've been counting very carefully and as accurately as I could. I started about a week ago, just counting everything I eat without changing anything. Apparently my daily intake lands between 3300 and 3600 cal per day. A lot of people say they eat only 2000-2300 a day, sometimes less. My weight fluctuates around 165lbs, and I'm just over six foot tall. I tried only eating a 'normal' amount but I was weak, lightheaded, and irritable the whole day and couldn't get anything done and had a major brain fog. Could it be a thyroid problem or just a fast metabolism?
A lot of people say thats a very high amount but to me that's normal and if I ate less then that I couldn't function. I run 2-3 times a week hard, ride my bike almost every day to and from work unless I take the bus, that's a eight miles round trip, and I go on hikes multiple times a week and occasionally lift, if that helps.