Returning Morning Sickness?!? HELP!!!

Has anyone has morning sickness go away completely then return later with a vengeance? I will be 26 weeks tomorrow and I haven’t had any sickness since about 17 weeks but the last 3 or 4 days I am absolutely miserable! I can’t eat anything without gagging or actually throwing up, I have absolutely no appetite yet I’m so hungry it hurts, and I just feel like garbage! My first trimester tricks don’t seem to be cutting it this time. Is this normal, or should I consult my doc? Help!