Yes, this sounds like derealization and depersonalization. Here is a
definition from the go to medical dictionary, the Merck Manual: persistent or recurrent feelings of being detached (dissociated) from one’s body or mental processes, usually with a feeling of being an outside observer of one’s life (depersonalization), or of being detached from one's surroundings (derealization). Sounds about right, no? Treating anxiety often helps alleviate the symptom.