Your electrical system is all screwed up. That's going to be expensive. Sorry

An OBD2 code check will tell what is failing.

Look at your belts. Are they frayed or cracked bad? It could be as simple as loose belts slipping.

Your alternator is failing.

I started my car and the airbag light started flashing and while going through the parking lot it felt like it started running out of gas.. The gas gauge dropped like when you shut the car off or the battery died then it went back up and the car stopped..