I smell gas but i'm not lossing any.

SOURCE: I ran out of coolant.

Yeah a Air bubble sounds about right because its looks like theres back pressure in the radiator causing the coolant to leak out, so i'd suggest draining the coolant out in the driveway or on the grass and stick a hose in the cap hole and wash it out, also replace the radiator hoses incase you have a pin hole in one of them and refill with coolant and see if that has fixed the issue.

SOURCE: 2004 3.8L Impala coolant loss

are u getting any white smoke from the exhaust? it could be a water jacket leaking which means it wouldnt neccessarily show up in the oil.

SOURCE: losing coolant, no large puddles in garage when

If engine oil was thick , somewhat " Russian Dressing " like, I would look for coolant mixing with engine oil. Causes could include leaking internally head gaskets, cracked heads, intake manifold gaskets, etc. Initially and unfortunately the intake manifold, and cylinder heads will have to come off. Then a complete visible inspection of ALL GASKETS will be required as well as CYLINDER HEAD AND BLOCK for cracks. After repairs are completed don't forget to change the oil and filter again. Hope this helps

SOURCE: gas smell in the oil.....have to put coolant in often

It sounds as if you have an intake gasket leaking. This will cause both problems. The coolant is probably going out the exhaust. The fuel is probably loading up in the cylinder and leaking past the rings or valve seals.

SOURCE: i stopped for fuel yesterday and minutes after

If you had to add oil, more then likely there an oil leak could be a gasket or oil seal, where ever the leak is at it's falling on the exhaust manifold and burning the oil, that's what you smell. Have it check cause low oil will damage you engine.