penis numbness, sensitive or lack , discoloration

Well guys these symptoms and more is due to overstraining, stretching too hard .
it is your own fault and in most common cases causes nerve damage to your penis .
it is not about causing internal damage to the penis but meaning the neurone paths in and around your penis have been squeezed and consequently damaged so now you have to rest and leave your unit alone for a long while before restarting your journey recovery may take bet ween 6 to 9 weeks depending of the damage.
Now you can treat your unit with TLC using Bio oil for instance, but it will not fix the problem until a new neurone path is reestablished or replaced by itself.
nothing else can be done just rest and forget about your unit for a long while.

Good luck