Is it normal to not lose weight when starting a vigorous cardio workout. I know it's normal to gain with weight lifting but what about cardio? I'm doing over 3 miles at 3.6 speed. I uped my calories a little since I workout 5x a week. I was eating 1200 & it wasn't enough. I feel sore so I'm prob gaining muscle. I upped my cals to 1400-1500. And 1300 on rest days.
I'd like some insight please

thanks