Intermediate problems - JELQS peeing and erection issues

Hello everyone,

I have some questions about Jelqs which I would like your help with.

1. After a good jelq session, when I pee my stream instead of being just one it goes everywhere, should I be concerned?
Eventually it goes back to normal but it’s a bit scary to see my pee going in several directions.

2. Jelq sessions feel like they really pump my overall girth and my head size, however I now feel the head of my penis has lost a lot of sensitivity, I find it very difficult to get stimulation when masturbating from pure feel and I think only being stimulated by visuals such as porn it’s a very bad habit.

I have tried stopping for a while but no changes, have I ruined my sensitivity?

Thank you!

I have tried using the search function for the following but nothing came up on either topic.