I have had really bad ligament stretching already
 
 
My m/w was busy when I tried to get hold of her to ask what on earth was happening to me!  So I jumped in a hot shower and it worked a treat!  I had to do something I was beside myself with the pain!
Other than that m/w did recommend later that day a hot shower or to take a rest (and to not go for a massive walk like I did thinking it was wind)!!  What a dork, it just made it worse!