I was wondering if it was normal to feel like something is crawling on my head and shoulder after Botox?

Thank you for the question.  It is totally normal for you to feel like something is crawling on your head and shoulder after Botox -- as long as something is crawling on your head and shoulder.  Botox should not cause any numbness or "phantom" sensations, though people describe the feeling of the neurotoxin taking effect in different ways.  Good luck! 

Hello PhantomPhan21,
I only inject neuromodulators for cosmetic reasons, but it has been found that the very first injection- some will expect a heaviness, headache or flu like feeling as they are not used to not being able to move those muscles.  If perhaps you have had these injections to the neck/body for migraine or medical purposes, the same can apply as you could experience odd sensations due to non-movement of muscle groups in which you are used to.

These symptoms are not commonly associated with botox treatments.  The good news is that botox wears off in 3-4 months.  If your symptoms persist, I would recommend following-up with your primary care provider.