My screen goes black and there's odd sounds

[Tdog105]

Did

 

Ok I recently starting playing FO:NV again after getting a new computer and I install the NMM and some mods and started playing. Was having a great time until I got to the New Vegas strip. When I am outside the walls of the stripe and freeside I notice my screen will lose all hub stuff( compass, ammo, etc), the cross-hair will disappear, and there would be these weird sounds (one being like cloth rustling, another being this almost bang sound) then the hub stuff would reappear before it would repeat again (sometimes I get a second of picture before everything goes dark again). If I leave the area around the stripe/freeside the problem goes away, but if I go back I either have to move really fast to get inside a building or Freeside or fast travel away from the stripe.

 

I have uninstalled all mods and tried it only for the problem to continue. So it doesn't appear to be a mod problem. If anyone can explain this to me as well as how to fix it I would be very grateful.

 

Also I am having a problem with my character moving like the Flash for no reason. At the start of the game when I'm with the Doc I move normal but the second I leave his house I start moving so fast that even at normal speed I fly slightly when there's a dip in the road. How do I fix this?

Did you ever fix it? My game is doing it and IDK how to fix it. Im 30 hours in the game and do not want to reinstall the game and everything.