I have a twitching feeling on the left side of my body a little above hip bone. it is not painful, more annoying than anything else.

Watchful waiting: This is common in young people and almost certainly will abate by itself.

Common/fatigue?: May be something called lateral femoral cutaneous nerve syndrome, sounds scary - simply a pinched superficial nerve from pants / belt too tight. Loosen them-it goes away over time. Do you keep your phone in that pocket? There's a real thing-phantom phone syndrome. Move the phone-goes away with time. If neither, these focal twitches usually disappear. If more areas or persist eval may be necessary.