Is it normal to feel faint dizzy hot after something really bad happened

so my wife miscarried again.I had to fire a nice guy because he was a really shitty worker and kept missing shifts, then I had words with my dad who is pissed I didn't bail him out of jail for his little drunken snafu in vegas. When I Went to see my wife at the hospital, I almost passed out felt dizzy clammy like I was gonna pass out.I kept hearing this buzzing sound and seeing dots everywhere.Everything around me was like blurry muted.My mother in law thought I was having a heart attack.The doctors check me out and said nothing is wrong with me.I feel like a huge pussy and I didn't even have the miscarriage.