is this a blown head gasket ?

The car was blowing water and steam out the overflow tube and the gage wasn't reading all that hot. I would run about 12 -15 miles and when I would get to where I was going and park the car would puke out a bunch of antifreeze and water .I would refill it be for comming back home .This happened 3 or 4 times .before I had time to work on it. Now it seams to be doing OK .I do have a overflow bottle on the car and it filled it and still puked out a half a gal or so .Don