i'm digging this out of the recesses of my mind, so it may be slightly inaccurate.. but 40 tops i believe. ginger aids in increasing the digestion of protein, though.

Protein digestion is relevant to your body weight and size. Another factor is how long have you been on a high protein diet? Your body gradually gets more efficient at metabolising protein when it is presented in abundance in your system. For you I wouldn't go for more than 33 grams per 2-3 hrs. A good indicator if you are eating to much protein is gas. If your are experincing any of that that you have excess protein. Another indicator which is kind of gross, but true is your feces. If it floats, your body has absorbed all of the nutrients from your food. If it sinks you are consuming an excess of protein and / or carbs so the rest is being excreeted making your deposits heavy and they will sink.

Very good suggestions again Pipes.
as Sparkly also said, taking a 500mg cap of GingerRoot prior to your meals can lessen the effects of bloating and indigestion.

ive had gas/diahrrea for the past 3 weeks....does this mean im consuming excess protein?

thing is, ive been eating this way for almost half a year, then i took a month off, then when i started back 3 weeks ago, its started happening.

how many grams of protein are you eating/day? what is your current weight?
do you use alot of artifical sweetners in your diet?