Suffering with a migraine is awful.
Common symptoms are initial indicators like wavy lines, slurred or muddled speech and dizziness.
Once the initial symptoms clear, other symptoms follow such as pain on one side (may swap sides), dehydration, thirst, cold sensation,inability to think clearly or perform normal activities or thumping or throbbing headache. It's not the case that all symptoms have to be present.
A ton of different things can cause a migraine in people who get migraines. For example...