@Lucyloop,
You had an accident after you fainted, these things happen. It seems that the airline crew acted appropriately but the behaviour of other passengers was the problem.
The loud girl you mentioned sounds like she's jealous which is why she was so nasty.
You've had a truly terrible experience and deserve a bit of sympathy not ridicule.
This is very raw right now, but people's memories fade and it won't be long before there's something else or someone else to gossip about.
I would see a Doctor, there may well be an underlying health reason why this happened, and if nothing else you may be able to stop it happening again.
I understand if you don't feel you can go back to work, but before you do anything drastic you may want to phone up HR and have a chat with them.
I think most people when they hear a story like this would feel concern and sympathy, and I'm sure that's the case with most of your colleagues.
Again, I'm sorry you had to go through this, but things will get better even though they're pretty dire right now.