As per title.
Got quite happy with running 5k last year, then stopped at the end of the summer for various reasons.
Anyway, I've put on weight so dusted off the trainers and went back out there yesterday. My local park has a 3k run route. Annoyingly it has a REALLY steep hill about 500m in.
Could only manage half the hill and that felt really difficult. Walked the rest of the hill. Ran the rest very slowly. Literally 8minutes per km.
I felt TERRIBLE at the end, with a chesty cough that hasn't gone even today (I never get coughs!). Also my quads are agony 
Any advice?