So I weigh about 84kg I should be shooting for ~150g protein daily? I don't really track closely but even with my ~30g post-workout drink I am guessing I don't get that much. I should keep a closer eye on it.
Yeah I would try increasing protein, you may not have been getting enough for optimal recovery & growth. Besides protein shakes, non-fat greek yogurt and egg-whites are almost pure protein sources that are easy to add in.