What am I supposed to do against this? I use the feast build as my opener. I find it lets me take an economic advantage while also sometimes hurting unsafe terrans who don't bunker up. But I can't scout that he is being greedy until I attack with my first warp ins, and even then sometimes I can't actually see that he is being greedy. But if I do see his 3rd CC, how do I play from then on? I have tried heavy 2 base collosus pushes just as they are getting out their first medivacs, but if I push up into their ramp they will just crush me with a superior concave and SCV pull. If I try to expand they should be able to scout it and then just move out when their 1/1, stim, and medivacs all come out and kill it as I will be both behind on tech and upgrades. And even if they don't attack, they are still ahead anyway.
I find that I rarely see terrans play this greedy in pro games, so I just don't know the appropriate way to respond. So any help would be appreciated.
I can supply a replay if requested, however I feel this is more of a "What should I do" thread rather than "What am I doing wrong".