alittle background to start out, i've not been very active for quite awhile. I currently started a week ago at 290lbs. I've got a bone spur on my left pad of foot, a bad knee and corporal tunnel in one hand, so some exercises alittle hard to do. Based on my activity level, i was scheduled to just walk 30mins a day. I've in addition added aerobics (richard simmons, ugg) for 30mins and also short bike daily. Yesterday i figured i blew at least 650 calories, probably more since i added using weights to my aerobic workout. I was happy this was the most i'd done exercise wise. While doing the aerobics i pushed myself untill i was light headed, so figure i went alittle overboard, but i'm trying. Anyway, i told my husband what i'd burned calorie wise and he was like, is that it? He says i should at least blow all 1800 calories i eat a day. I was so exhausted but went out and walked another 45 mins and came back with blisters on my feet, coughing,,,,(alergies and slight astma, sigh). My question is, what should my goal be for calories burned daily. I feel like i'm trying, i woke up today, hurting all over paying for all i did yesterday but when i was told it wasn't enough by husband, trying to figure out exactly where i'm going wrong.