wow. your PUPIL was big? or your *EYE* appeared big? such an interesting description. this does not sound like a "stroke". it could, however, be angle-closure glaucoma (was your eye RED?)
no matter. this is not diagnosable via the internet. you need a full eye exam with pressure tesing and visual field. i'd go asap. i wouldnt wait until the 10th.
PS- if I take Inderal- will it help with lowering the pressure in my eyes?
What can I do to prevent this? What meds should I take?
I have some Timolol - drops- would this help? (they were prescribed for my dog who had glaucoma-new bottle- (he passed away)- could I use those?
oral inderal would probably reduce your intraocular pressure very slightly. but how do you even know you have high IOP? i wouldnt take an oral beta blocker just b/c you think you might have raised iop. i wouldnt take ANYTHING until/unless specifically directed by a physician.
NO do not take your deceased dog's eyedrops.
get an exam. asap. dont try and fix this yourself.