Nice track lap time. A very good way to do speedwork . I used to love training around the Don Valley stadium which doesn't exist anymore as it was demolished much to local sports users disgust.
Presently we both seem to be on similar pace. I am only just above walking pace. I am sure you will soon pickup the pace more akin to pace you usually run at.
I am now on 3 types of eye drops for glaucoma. Could the beta blockers contained in them be getting into blood stream I wonder ? Coupled with a/D's and hbp medication.Maybe one reason it feels harder to run. Stamina is down too.
Ran/walked on three days this week all short 3 miles lake circuit. Heard a woodpecker but couldn't spot it amongst the copse.