Had junk yesterday evening. By night time, I was having severe gas. Tried passing stool, I was constipated (having constipation problems since few months). Gradually started developing stomach pain along with gas and head heaviness and headache. Was burping a lot so I vomitted, the food came out. The food was not digested. So I took a pentaloc dsr and slept. Today morning woke up with a little fever (took a paracetamol), no gas nothing else. I wasn't feeling fresh and energized and had to take a nap in between work due to fatigue since morning. Again in the evening, I was feeling feverish, head was heavy, dizziness (probably low bp) and another thing I noticed swelling on my cheeks (where the bone is under the eye socket) and hands (fingers mostly). Now there is no gas or stomach pain only these symptoms. What could this possibly be? Was also having a stressful period since 10 days.