MH, weight loss/gain.

Hey MH, as of late I've been just eating all raw fruits/veggies. I have a problem though, weight loss. I'm 5'8, 19 years old and only about 127 lbs. I feel really skinny a lot of the time and I look it. I'm trying to put on the lbs but it doesnt feel like its working. Some people want to tell me its what im eating but some thing is telling me its not that at all. I have three questions for you:

1. Can tapeworms really suck that much weight out of you?

2. Im liver flushing is it possible im not gaining weight because I havent fully decongested my liver yet?

3. How do I gain some weight?