Started florinef (fludrocortisone) 0.5mg 3days ago 4dizzy spells r/t dysautonomia. It helped but pants are already tight & abd bloating w/pain. Will this go away w/time?

As above. It may be better to discuss this with u pcp .
Florinef (fludrocortisone) Your present sxs could certainly be related to the sodium retention which is the reason we prescribe this medication. I would give it a few more days to see if things equilibrate on their own.