[GAMEPLAY] Intermittent movement stops/stutter/invisible collision

In several games yesterday, I noticed bizarre movement issues under the following circumstances:

1. Objects were nearby but not in my direct movement path (fallen turret, minions, Cait trap, wards)
2. Was playing Teemo in astronaut skin

The effects were as follows, all by clicking a path on the minimap:

1. Stopped movement when running near Cait trap (approx. 200 range from trap, no trigger visual or effects)

2. Stuttering, "dizzy drunk" pathing at random times running around packs of minions but not in collision with them. In other words, it was like running through a dense pack of invisible minions resulting brief erratic movement for no apparent reason.

3. Running away from a Riven approx. 400 units behind me, movement stopped completely when passing a fallen turret. Then I got the stutter/invisible collision pathing again when running along side an advancing line of friendly minions.

4. Running through the jungle and into a brush, an enemy pink ward in the brush stopped me like a wall and rooted me in place with some kind of red/fiery circle briefly appearing at my feet. At first I thought I had hit a Nidalee trap, but there were no bugeyes over my head. I killed the ward then moved on. This is either a movement issue or a visual bug with traps.

I recorded my last few games of the day but was not able to reproduce, though I was using a different champ or skin. I will update with video if it keeps happening and I can catch it. In the meantime, has anyone else experienced unpredictable movement?