Spirit attached to me.

The tick just comes randomly,
i have proof its real because sometimes friends i am verry close with see him following me to.

the tick may come randomly, i've had random occurrences the doctor couldn't help me with unless she witnessed them, but you need to check out all logical conclusions. i understand not everyone has free health insurance, but it's better to explore all possible options. try speaking with it, but also be aware of the possibility it could be something health related.