I have tickling sensation in my right foot in the night. It is so annoying and I can't fall asleep for hours. Please help. I am female 21 years old.

Neurologic. You may have Restless Leg Syndrome with a slightly atypical presentation. It is neurologic and the "typical" complaint is the feeling of having to constantly move the legs around in order to feel comfortable and get to sleep. There are non prescription as well as prescription interventions that can help. A complete history, exam and lab testing can support the diagnosis. It can be managed.