All day yesterday E. thought I was another lady (couldn't bring myself to say on Tuesday when I asked for advice but I know it's his first wife from a marriage which finished over 40yrs ago). He was very animated all day again telling me all about our family, holiday experiences etc I just listened didn't contradict him & made lots of tea & made sure he had his anti biotics on time. Finally late afternoon we needed milk (all that tea!) & money from ATM so told him I was going to shop for no more than 20 minutes. On my return I realised he was back to recognising me as me but he wanted to know where the lady who had been with him all day had gone? When I said I don't know, made more tea etc then as I was at a loss as to what strategy to try So tried to say he must have been dreaming as I had been with him all day. My fault I know but he said I was suggesting he was crazy & became very distressed to point I thought who do I call for help? In the end I texted my brother asking him to phone & try & distract E for me to calm him down. This worked to a point as E switched off from distress talked through various topics no problem. But this changed mood didn't last as he refused dinner & went to bed very upset with me. So new day today and yet again I am this other lady has anyone any suggestions how I can manage this behaviour as I don't want the day to end with us both being upset again. E takes 25mg of Pregabalin twice a day which was prescribed to reduce extremes of agitation / anxiety. He had a SPECT scan 2 weeks ago & we see his consultant on 18th to hear if it has provided any more detail to previous diagnosis of Vascular Dementia following a stroke 6 months ago. Sorry for going on but it has helped me just to try & put into words what is going on as sometimes I doubt my memory of what goes on day to day!