My desk is right below my AC unit, sometimes I feel little spots of water hit my hand, even when the AC is off, other than that

it is working fine. Should I be concerned?

Had the same issue.

Your unit inside and out need a good cleaning.

Solved the problem for me.

Never put anything of value under an aircon. I did this one time in a hotel. My notebook was a total loss because of water coming down from the aircon. 

1 hour ago, possum1931 said:

My desk is right below my AC unit, sometimes I feel little spots of water hit my hand, even when the AC is off, other than that

it is working fine. Should I be concerned?

It’s certain that the drip tray is not draining, quite likely you have slime mould blocking the drainage pipe. So as advised it needs cleaning.