Weight
I am a 42 yr old female. I am 5'7 and I am at 122lbs. I lift 5-6 days a wk and cardio 25 mins. I've gained a great deal of muscle but have found I loose a few pounds once in awhile. I have difficulty keeping up with my calories. I'm not sure how much protein and calories I should be taking in but I'm concerned I'll keep…