Weird staling issue

[Houndguy]

So earlier today I'm on the highway, because i was running late for work. Sadly there was an accident up ahead which litteraly brought traffic to a standstill and I was late for work.

We would move five to ten meters, stop and the bike would stall. 50 meters, stop and the bike would stall 25 meters, stop and stall. After a bit the bike started to stall out nearly all the time. I tried to keep the RPM over 2K and it still stalled out.

This continued till I got out of the traffic and was able to open it up. guess what, no stall.

I've never experienced that before and was wondering if it was something simple, like overheating, or something I should be more concerned about?

Help me out here folks.