Hello PicklePudding - Welcome to the community. I note Rupert (@Rups ) as responded to your post in great detail and I don’t have anything more I can add to that. If you would like to know more there are quite a few posts on this forum on the subject matter and I think by reading these you will likely get a comprehensive view of what might have happened to you, why and what you ca do going forward.
I also hope with the information you pick up some of the confusion will clear and you do not need to feel alone. There are plenty on here who will share their experiences and keep you company. Chat groups and video zoom groups also meet up regularly and of course the Stroke Association has a phone number you can ring to talk to someone.
All this will hopefully make you feel a little better. Speaking from my own experience, I think you are in a good place and a TIA is not something you need to be too worried about. In life there are no guarantees and you never know what and when things may happen. Most people go on to lead perfectly normal lives after experiencing a TIA and there is no reason why you cannot be one one them.
Have a browse on the forum - take things easy, get plenty of rest, get yourself a nice cup of tea, drink plenty of water and try to think you you would like things to go on from here. It is something you can manage and take control of and if you are unsure or need help there is plenty available.
If you like social media and use WhatsUp, you can join this lively group and you will almost certainly get instant gratification and you might even become overwhelmed by the instant support and encouragement.
See link below to join.
The world is just a great big onion 
Namaste|
:pray.