What Causes Hives All Over Body And Inflamed Pudendal Nerve?

Hi, I m 23 and my entire life I have had inflammatory problems. I get hives all over. If I gently brush my skin it puffs up. People can write there name on my and it puffs up. For four years I suffered from a inflamed pudendal nerve and a lot more inflamed nerves near the area. I have had several nerve blocks to bring down the inflammation. I m allergic to everything. I am in nursing school and was studying and came along mast cells and I believe I have too many. Mastocytosis? Would this make sense?