Im with you guys on the dizzy spells! Especially when getting up too quickly from sitting down, and when getting up for a wee in the night.
I have been going to the gym 3-4 times a week, and do 50mins ish of cardio treadmill/rower/bike and then 20-mins in the pool to warm down. It feels great after, although I definitely have less energy than before LT and have a complete energy shutdown within an hour of going to the gym, and good for nothing but couch potatoeing for at least 2 hours to recover. Also get more dizzy spells after going. But it must be doing me good right???????