It's another "Do I have a parasite?" question?

I don’t think I produce enough symptoms to have a parasite, but I want to be a hundred percent sure. I have been pasting gas more frequently, and I think I’ve been bloating a little bit, not quite sure. My eczema was irritating a little bit, although, I did have eczema since I was born. Also, one day I ate a whole bunch of stuff; such as a large steak and some noodles. However, I didn’t produce any stool that day or the day after that. I would feel random aches around my stomach area only. Finally, I get these strange wiggly feeling around my left foot area mostly, then my right, then finally my right arm. The wiggling just wiggles that the same spot for, probably, an entire day, then migrates. I didn’t go to the doctor to ask, because I would sound ridiculous. Plus, I didn’t any constipation. And one more thing, I’m 18 years old and weigh less than 100 pounds. It could be genetics, or maybe it’s something worse! Do I have a parasite!?