Several Symptoms. I am unsure they are related.

2005 Dodge Magnum - not a Hemi
The first problem was about a year ago. I drove probably 70 miles and then had to idle
for a bit. By the time I was able to stop I could feel the heat and it smelled really hot. I
wanted for 4-5 hours and then looked and it was completely empty of antifreeze. I put
water in its place and drove home normally.

Got an oil change and water drained and antifreeze in its place. Drove for months
again.

Next incident: Driving 200 miles, running ac unit. Lose all pressure to AC and then it
just starts blowing hot air. Turn it off, and leave off until we get home. I removed us
some pine needles from vents. Everything seemed to be fine and no more loss of
antifreeze.

A few months later, the car would smell "hot". I don't think it was antifreeze, it smelled
more mechanical if that makes any sense.

Now, current day I still have the smell occasionally but not as bad. Right before the past
two oil changes I have been low on oil. The water is still fine.
Now the heat only works when the car is moving, it blows cold air when idling.
I was idling and my oil light just flashing and the alert sounded. I got out and checked
the oil and it appeared to be empty. So, I put a half quart in and drove to work (3 miles)
without any problems.

I ask my husband to drop off a quart of oil and he goes to put it in and I am completely
full of oil.

I am showing a code for an EGR sensor which I have not changed yet.

It has 112,000 miles. I am the original owner.