Do i need some serious electrical work done?

there’s a dimmer switch in my living room that buzzes, esp when the light is turned down. sometimes it is quite warm to the touch. the ceiling light in my kitchen was humming today. then the light went out. when i touch it, it will briefly come back on and hum before going out. not sure if this is relevant, but i recently replaced all three bulbs in the fixture with those energy saving bulbs. they take a couple of minutes to warm up (a second after flipping switch, bulb comes on with very low light, then progressively gets brighter), whereas the traditional bulbs that were in there immediately came on.