One thing worth noting is that inflammation after a stroke is worst ~72 hours afterward. The worsening symptoms a few days later may have been related to swelling and inflammation.
This is very helpful, thank you. Regarding the improvement and them seeing anything on the CT - the report on the CT only identified a single stroke and described it as sub-acute so I was told it was likely to have happened a couple of days prior. I thought much the same as you originally, minor stroke on the Thursday and larger stroke sometime Saturday night into Sunday but I was told no.I have been intending on getting in touch with PALS for a while now and this should give me the push I need, at this point I'm not even sure what the situation with the bleed was by the time the stroke happened. It's not been an issue since he was moved to the stroke ward and they resumed anticoagulation (high dose aspirin originally and then unfractioned heparin infusion).