I have a 3 foot double chambered Ice Bong. One of the fist times i smoked out of that thing I started to clear the bong and got about half way through before I coughed/sneezed/drooled all over the place. I toasted the whole bowl in 1 hit, (fairly decent sized bowl too approx .5 gram) Smoke whent everywhere and i barley could finish clearing the bong out. The next 10 minuets i couldnt stand up, just laid back in the chair and didnt stand up until it was my turn again. I stood up and got so lightheaded/blurred vision my buddy had to light the bowl for me while i inhaled.
Deff the best Bong hit ive ever had, wasnt the highest ive ever been. But i know exactly what you mean by your body says hell no. LOL great times