Following on from this question: Do any feats carry over when in Wild Shape?
It seems all feats carry over to your new form if your new form is capable of using them (so Mounted Combatant and Inspiring leader would usually be ruled as unusable in most circumstances). But what about Tough?
Your hit point maximum increases by an amount equal to twice your level when you gain this feat. Whenever you gain a level thereafter, your hit point maximum increases by an additional 2 hit points.
Would this increase your maximum HP by the same amount when in the form of a rat, or brown bear?