An infusion Pylon with Health Boost VI will cause a damage effect (POV tilt) every time the effect gets re-applied.

Looks like a known issue with the vanilla effect:

When the effect ends, any extra health is lost. In Java Edition, losing this extra health causes the player's view to jolt as if taking damage, even in Creative or Spectator mode.

From https://minecraft.wiki/w/Health_Boost

I'll take a look and see what I can do.

I honestly don't know anything about the forge API, but maybe it is possible to increase the duration of an existing effect instead of reapplying? Anyway, thanks for looking into it.