Surprised - when someone did something nice for me, something unexpected happened (pleasant or unpleasant).
tired - worked, did homework, stood with electronics too much, didn't sleep well etc.
disappointed - something didn't work as I expected/wanted, i did something and others don't like it, someone else did something that I don't like.
Examples:
Surprised: I was in the kitchen when my cat jumped on me. It scared me, but I enjoyed its company.
Tired: I stood three hours on the computer and i feel exhausted because of that.
Disappointed: My best friend promised me that she won't make the project alone, but she still did it. I feel disappointed with her.
Synonyms:
Tired- Exhausted (be careful at spelling), worn-out, sleepy
Surprised- amazed, stunned, wowed, shocked
Disappointed- upset, let down.