IV fluids (multiple bags) are the only way to get out of a bad POTS attack for me, but they do give me a huge headache! Slow drip IV’s don’t give me a headache, but it has to be really slow. Florinef put me over the edge too. Also, like you Dr. Diana, what worked last year isn’t the same as what is working now and it is ever changing. Some things work well for a time, then randomly stop working. That seems to be common with hyper POTS.