Which is a tactile hallucination? that dog is singing to me and asking me to sing along. that butterfly is growing so much it is as big as the house. there are invisible bugs crawling under my tingling skin. my intestines are a mass of wriggling worms.

   There are invisible bugs crawling under my tingling skin

Explanation:  Tactile hallucinations can occur as a result of drug consumption, and it manifests as the sensation of many bugs that are on or under the skin, crawling wanting to go outside. The cause of these hallucinations may also be Parkinson's disease, although hallucinations are then seen as floating sensations. The condition varies to the more harmless when the consequences of this hallucination are, to some extent, a pleasant feeling. These hallucinations may also be associated with schizophrenia, Alzheimer's disease, as well as other mental disorders.