<s>[INST] My male partner, 62 years of age has blocked carotid arteries as a result of radiation therapy for throat cancer 15 years ago. On Friday, after a day of sitting, he was dizzy and feeling disoriented for about an hour at 4:00 pm. Everything seemed to return to normal after an hour or so. Today, Sunday, after Brunch, he had some memory loss, again last for about an hour. Is this something we need to worry about? [/INST] Hello and thanks for your query. I understand that you are concerned about your partners recent episodes. Of disorientation and memory disturbances. From your description, it appears that he may be having Transient Ischemic Attacks (TIA). Another possibility is a Temporal Lobe Epilepsy. TIA is a condition where a person has temporary neurological disturbances whicChatDoctorpletely resolve within a day. This is usually caused by blood flow problems in the brain. In your husbands case, this is very likely, and it could be related to the blocked carotid arteries. Since he has had two consecutive attacks, it is definitely worrying, and he needs urgent neurological evaluation and further management. So, please take him to the ER for immediate medical attention. Best wishes. </s>