I don't know if this was asked before anywhere I did some searching and couldn't find anything about it.

Ok so.. here we go.

My base HP is 10543.
When I mount my Chocobo it drops to 10222.
When standing outside of the Thok ast Thok trial it was 9700 ish.

does anyone know the reason behind this? im using the same class buffs , same food etc.. but HP still changes and just find it kinda odd.