Major mood swings! Always itritated. Do?

I think i have major mental issues i am always upset and get irritated very easily. When people do not agree to my decisions i get really upset and stop talking.. i get major mood swings and do not laugh for days.. i was not the same earlier but from last few years i am facing such issues.. similar issues are with my wife as well due to which we fight almost everyday and now she has left because of our fights.. whenevr we sit togther or go out somewhere, we fight. She does not listen to what i say and i do not listen to what she says.Our married lyf is getting spoiled of our such behaviour.. my head always feel heavy and i rarely talk to people in myboffive due to which my professional lyfvis getting hampered.. people think i am an introvert or rude. What shall i do? Need major help here !!!