im having an issue were when the player dies they gain 2 new hearts and i dont have scaling health in my modpack i do have silents other mods silent gems and other addons666 this is happening in my 1.15 modpack

Does it still happen without silent's other mods (including silentlib)? Try to figure out exactly which other mods need to be present to cause the issue, ideally reducing it down to just 2 or 3 mods.

i removed sol carrot and no more hearts on death

Yes, that demonstrates our mod is involved, but I bet it doesn't happen with just solcarrot (or does it?). Try to narrow down which other mods bring out this issue in combination with it.

I had the same problem and could narrow it down to the Cyclic mod. This also only happens with Cyclic version 0.4.0 and 0.4.1.
pre 0.4 seems to be fine and 0.4.2 also works for me.

Oh yeah, the release notes for cyclic 0.4.2 mention "Heart containers compatibility fix.". @TheNimbleNinja did your problem occur with cyclic and does 0.4.2 fix it?