I've been taking a Thermogenic supplement called Metabolift on and off.... I've got a few concerns and questions that I hope people here can help me with.

Keep in mind I recently decided to increase my diet in hopes of bulking up.

1. Should I stop taking a thermogenic for fatloss all-together while bulking?

2. Will taking it while trying to bulk hinder my progress in gaining muscle? or will it make my bulking a little more "cleaner"?

3. I think Metabolift has has appetite supressors in it that have been making it harder for me to pack food in my stomach. I take them starting in the morning and when I drink a protein shake about an hour later I feel like im gonna hurl because of the appetite suppressors. That being said... Is there a good fat burning supplement on the market that dosnt have the appetite suppressors?

4. Since I believe that caffine is the active fat burning ingredient in these supplements...Should I just take caffene straight up?

Any advice would be appreciated.

Thanks