Welcome to HealthcareMagic forum.
In all probabilities you should be fine in some time.
Stretching and pinching may have induced some inflammatory changes which can take some time to recover. Recovery will be affected if the area affected is repeatedly manipulated. So rest well and no exercise and you will be fine.
Do you notice skin changes/ redness
and is it paining? - If yes, then you will need analgesic
Hope this answers your query.