Truvia is simply amazing... sweet smooth taste, no after taste, available at Wal Mart, and it even smells good! I have never experienced bloat, gastric discomfort, or constipation regarding its use - although I never have more than 6 packs a day, so I would label it as moderate usage. Give it a try!! I tried pure Stevia powder, and it was like sucking on a sour atomic warhead!
Best of luck in all your goals!