I went through something like this recently. I had isolated myself from everything it seemed like. We put on these faces that are not what we truly feel. I stuffed so many feelings over the years that I didn't know how I was going to handle it. It eventually happened, and I do not know why it did. I believe that you will get to the point that you will be able to feel these emotions again, and in time you will find a way that will help you!