Constant gas smell. had PG&E come and check. The determined the leak is coming from the stove somewhere, not from the gas line

has to be an internal leak in the ovens tube

Please do not use the stove, get it checked out for a gas leak it is very dangerous.

put some bubble blowing solution on suspect areas, if there is a leak it will blow bubbles, no joke...

This sounds like a gas leak at the gas control valve for the oven, probably somewhere just past the control valve. If the leak was before the valve, you would either hear or smell gas leaking all the time.
The line could simply be loose at the fitting or the gas valve could be faulty. You could also have a leak somewhere at or before the oven burner assembly.

At any rate, this condition can be dangerous. The oven gas leak (any gas leak) should be diagnosed by a competent technician and the cause(s) of the gas leak determined as soon as possible and corrected.

we call these vehicles exploders.. lol
sounds like a fuel delivery issue, does it throw a check engine warning?

You have to purge the air from the lines.
At the water heater, take a wrench and loosen the gas line until you smell gas coming from the line. Then tighten the gas line. Check it for leaks with a soapy water solution. Let the gas smell clear, then light the pilot on the heater.

I had this problem with my stove and had the regulator changed coming off the PROPANE tank.

Look In broiler compartment and check for signs of mice

Hi the fact that you smell gas near the floor suggests you do indeed have a gas leak, propane is heavier than air to will fall to the floor.

you really need to get the gas company to check

For safety purposes call gas technician to check your gas pipe. If stove turn off supposed not to smell gas.