Does Thursday consist of running around a track? If so move that to some grass somewhere. You should be able to improve considerably just be adding one or two more steady runs given the small amount of aerobic mileage. Don't go mad and try to increase it all at once mind.
I've had some minor shin problems the last month and dealt with it by icing for a couple of days and cutting out all long runs and speed work and switched to doing all runs on grass. I had a bad deep ache in both bones for 2-3 evenings which subsided and gradually it has improved. After 4.5 weeks I am almost better I think, but still being cautious. However if the pain was continually needing icing and was as bad as yours is I would by now have concluded that further resting was needed. I read some articles on 'can you still run with shin splints' and one of them recommended a graded reduction in mileage where you keep on cutting it back gradually until the pain subsides.
sb67, not that I'm aware of, I try to just ignore it. Running is going reasonably well and no way would I come off statins as I have some fairly serious underlying ticker probs. Good luck with the tests.
Been on statins for about 8 years now and I get quite bad twitching in the calf muscles. Have toyed with mentioning it to the gp but never got around to it. I was on simvastatin most of the time but got switched to lipitor (atorvastatin) 80m last year. Neither of them specifically mentioned muscle twitching on the leaflet but both mention muscle weakness and breakdown in the worst case.