1992 Pontiac Sunbird Engine Overheating

Last night I was driving home from work and I noticed that my temp gauge indicated my engine was getting way too warm, like, I wasnt at the overheating mark, but it was above the 3/4 line. I had to walk home because I didnt want to warp the head.

this mornin I went out to check what might be wrong, I started looking at the rad (if this makes any difference I brought it to a shop yesterday to have the spouts soldered.) And I seen TINY TINY drops coming from the bottom rad hose, but it wasnt really dripping from the engine. It was just sitting there, I wiped it off and started to look elsewhere. I felt the hoses that are for the heater core, the one going from the engine is hot and other is kind of warm. So my dad and I think that my heater core might be plugged up. But not sure


driving it around a little today testing things, I noticed also the top rad hose is hot, like I can burn my hand if I hold too long, and the bottom rad hose is cold.
thanks for help in advance