head gasket problem?

just curious if a significant loss in acceleration when its cold, and when its milder, no power when foot is floored to ground, plus a noise pulsates like a tiny hole near spark plug, but NOT the spark plug is a leaky head gasket problem?!!

need more info...
but a head gasket usu...you see...white smoke when runnig engine....or water in oil...oil in water...of course these are definately blown...head gasket....

there isn't any white smoke and today, being 40 degrees, the car ran a lot better

but still runs sluggish