This is not a good idea for sure.. suddenly stretching like crazy for 2 days is a clear NOT DO when speaking of safe stretching!
There are a few things you should avoid when stretching:
You need to avoid:
- Streching to the stage of pain
- Stretching when facing an acute muscle strain
- Stretching when you are facing a bone fracture or joint strain
Sounds like the first NOT DO is what is going wrong in your case..
Extra guidance can be found here:
http://www.stretchify.com/our-stretching-guide/