If you aren't doing drugs, you may want to look into Peduncular
Hallucinosis. Hallucinations, in this case, are normally colorful, and vivid, and occur during wakefulness, predominately at night.Other visual hallucinations tend to stem from psychological disorders. While a person with a psychological disorder thinks their hallucinations are real, people with Peduncular Hallucinosis normally know that the visual hallucinations they see are not real. Peduncular hallucinations are independent of seizures unlike some other visual hallucinations.
If I were you, I wouldnt ignore this. The causes for these hallucinations range from tumors and lesions in the temporal lobe to epilepsy and dementia. Visit a doctor. And if he gives you a clean chit, we'll look into other possibilities that go beyond the physical