Could my water pill increase drainage post tummy tuck?

Sounds as though you have a seroma, which is relatively common after a tummy tuck. Seromas do not resolve spontaneously and need to be drained to improve. It's also generally a good idea to utilize compression (binder, garment) after drainage to limit recurrence.Hope this helps!

By looking at the photos, it does not seem to be a hematoma at this time. Most probable what you see is the difference in the amount of fat (thickness) that you have above the belly button and below the belly button, this also accentuated by the swelling in the area. During the tummy tuck...

In a tummy tuck, you have had excess skin and fat removed and incisions closed with multiple layers of stitches. You also almost certainly had a muscle repair with very strong sutures in your fascia. It is extraordinarily unlikely that any activity like laughing could have any detrimental effect...

It's unusual for you to be draining so much after 6 weeks so best to see your plastic surgeon so you can be properly examined and evaluated in person. Good luck!