A doctor will order scans of the area to see if there's anything obvious requiring surgery, otherwise a physio or similar should be able to provide you some exercises to strengthen the body. You could probably just take yoga, pilates or calisthenics classes as long as you don't exacerbate things.
IDK much about pharmaceutical chemistry, but I wouldn't be too concerned about the expiry date. They usually decided with a large error of margin. The sooner the company says something has 'expired' the sooner it needs to be replaced.
Interrupted garden paths. Like stepping stones in lawn. Just put a continual path. Stepping stones are terrible for access and maintenance. Just grass or just paving would be preferable.
Slow maybe, but it is Thursday.