Please help me!!?

I don't know why but I am feeling extremely weird. I constantly feeling nervous or anxious. There is nothing for me to feel nervous about. I treat myself well. I get enough sleep at night. I excercise almost daily. I eat well. But I feel like I am on the brink of insanity. I want to see a psychologist but I don't want you spend that much money. I am still in high school. I just moved, but I am fitting in well. I have made quite a few friends. I love life. I could never hurt myself or anyone else. I am not suicidal nor do I want to act on the people around me. What should I do? Why am I feeling this?