Hard workouts have left me in pain?

Stretch...stretch, and stretch...and rest before you start running and working out again. Always do a slow and steady stretch. Go to the point just before it hurts more than you can take it...it will get that muscle back into working order. Never bounce your stretch! If you can get someone to help you apply, or apply it yourself some sort of liniment, and heat, it will speed up the recovery, coupled with some deep massage therapy. Good luck!

it's probably you're body deciding to revolt. if you haven't been running for 3 months and now your doing conditioning for soccer thats a big jump. when I played back in high school during the conditioning portion we would warm up with a 3-4 mile run. stretch, run a couple more miles. run sprints. fartlicks. more sprints. intervals. and then usually end the session with a couple more miles. thats a lot of running to get hit with all at once when you haven't been doing it in awhile. I would recommend trying to stretch out your muscles, take a hot bath, stretch them out again and rub in some icy hot. if it doesn't start feeling better again soon I would consult your coach or a doctor to make sure there's nothing seriously wrong. (and just so you know you're probably going to be sore for a couple weeks until you get used to the strain on your muscles and joints so if you can I'd try to cut back a little bit)

it could be the lack of conditioning during your 3 month break and then you all of a sudden do your sesstion. and also not stretching enough. you should probably just rest and when it feels better, stretch more before you run. been in that situation before ,played soccer for 10 years man.

reduce your work out.