I'm hungry but whenever I eat I feel sick
It started two days ago. I woke up in the morning and I was really hungry, so I ate fine but then all day I felt starving, which isn't normal for me because I'm not a very hungry person. I ate some yogurt and that went down okay but when it came time for dinner I was shaking and starving. I tried to eat my food, but it made me feel sick to my stomach so I stopped. That night I started having stomach pains and my legs felt really sore and I had a low grade fever (always between 99.1-99.6) The next morning I couldn't eat breakfast I made some toast to bring upstairs while I lied down but I couldn't really eat it. Then I just rested the whole day and that's when the back and head pains started. It is now day 3 and I just ate a banana with no problem, but I still have the back ache, head ache, and I feel a rope like lump on the lower left side of my stomach. I am on the skinny side and I heard that it could be my "descending colon."
Keep in mind that I've also had trouble having a bowel movement.
Any responses would be great, I just would really like to know what you think before visiting the doctor.