Recently (last month or so) my coolant light has been coming on...my coolant is low when i check the tank...so i proceed to fill it back up with the water/antifreez mixture....a few weeks later the coolant light came on again....from what i have heard and read my coolant shouldnt really be a problem for a fairly long time....the tank even says have it check at 150,000 miles, and i only have like 98,000....i dont see anything leaking on my drive way so that means its possibly going into the engine.....is this an issue with a gasket....when i got my oil chaged a few days ago i asked and they told me that GM cars sometimes have issues with a certain gasket....i just want to fix the problem the right way...and i know coolant possibly being in the engine is NOT good. THANKS FOR THE HELP!!!

1999 3.4L V6 haha Silver 4door