First, thanks for the concern everyone, I'm fine, just taking it carefully this morning - family all running around like headless chickens trying to do the work here JUST LIKE ANNA WANT'S IT DONE OR THERE WILL BE TROUBLE! LOL!!
Cassie, do calm down, Suzie will be fine. Of course she had a shiver after all that rain, but that is just the natural way for her to control/regulate her body temperature. Did you know that eating hay is the quickest way to warm a horse up - eating and digesting actual hard feed will reduce the body's ability to keep warm because it takes energy to digest it. So loads of hay, like you usually do, is the best thing for Suz right now.
Drying her gently with towels was fine, but I would hesitate to use a hairdryer - I'm a funny one about drying horses (well I'm a funny one any time!) but I think about how I would feel myself, and I would hate to feel all warm from a hairdryer and then cold again as the hairdryer was stopped. Same with rugs - if you put a rug on a horse to warm it, then you cant take it off again until you do something else with the horse (ok, I'm cold so someone gives me their coat. I warm up so they take the coat away, I now feel cold at the removal of the coat!) I wouldn't put a rug on a horse with even a small amount of winter coat left on them. I MIGHT lay an anti-sweat rug over them (one of those ones that look like a string vest), but I wouldn't do it up and would let it slowly slide off as the horse moved about - lots of air able to circulate through the rug and around the horse to dry it off. Always leave rugs undone so the drying air can get to the horse as it moves around, make sure there is no cold wind getting in to the stable. As Suzie's coat dries she will be making those rugs she is wearing, damp. You need to get them off her and just lay another lightweight one over her from her withers and across her back, dont do it up and as she slowly dries properly from her front end first, the rug will slowly slip backwards, allowing more of her to dry out etc etc. If this rug feels damp after an hour of so you will have to replace it with another dry one (in exactly the same position as the one you are removing) and carry on doing this until Suzie is completely dry and the final rug has naturally slipped finally off her back end. THEN you should be ok to leave her without rugs, but never remove the rugs she is wearing just because she FEELS dry, she will immediately miss their warmth, just leave them undone for the air to circulate and let them slip slowly backwards (be prepared to watch that they are only allowed to slip back slowly, and keep replacing a damp feeling rug with a dry one until the whole process is over)
I'm sure this all sounds frightfully confusing, but hopefully you can understand some of it. If you have to go out this evening, then get down to the stable, get those rugs off Suzie, replace them with one dry one left draped over her and hope for the best. She will be feeling pretty hot very soon under what she is wearing now, even starting to sweat instead of drying off.
And dont worry - SHE WILL BE FINE!!