You need to hear your body's signals and heed them. Your body is trying to tell you that something is not right. If not, get started.
Tight muscles are a fact of life and they tighten faster and further with activities.
You should run most of your runs at easy pace and save the faster stuff for specific speedwork and tempo runs. You need to hear your body's signals and heed them. Your body is trying to tell you that something is not right. If not, get started. Tight muscles are a fact of life and they tighten faster and further with activities.