I am currently on full liquids and I am trying activia vanilla yogurt for the first time. It's in a 4oz container. Is this too much. It's regular yogurt not Greek. I am letting it liquefy in my mouth before I swallow (that sounded gross.) what are your thoughts?

It sounds perfect to me. At first, we can't tell what's too much because the tummy is still numb. As long as you measure your food and it's somewhere between 1/4-1/2 c, no need to worry. Enjoy it!