Would anyone else's DP have to have a limb falling off before they'd consider seeing a professional? 
I joke, but health is one area where I don't think DP and I see eye to eye at all.
If I have unusual symptoms that last more than a few weeks, a month, I will book in a GP's appointment. Doesn't happen that often - maybe three times in the last five years or so. Separately, I don't really express much anxiety around health to DP; I might just mention if I have a strange symptom in passing.
However, the last time something came up and they couldn't find a cause, he started calling me his "little hypochondriac". Not in a spiteful way really, just teasing, but it did frustrate me a bit. The symptom was unusual and persistent enough that it apparently warranted a hospital test, even though it came back negative.
Then last night out of the blue I felt really off. Very weak and queasy with a racing heart and it gradually built up over a couple of hours. I called 111 who said to go to A&E. Nothing obvious found but more tests to be done as there is a congenital heart issue in the family.
DP asked if I wanted him to drive me to the hospital (about 2am by this point) but said with closed eyes from bed so decided to leave him to it and get a taxi. Whilst I was heading out the door I mentioned his phone was dead and he said "oh you can charge it if you want".
I'm definitely more sensitive to health than he is, and perhaps slightly more than average, but I don't have form for panicking about it or even having that many issues that I get checked - just more than him. AIBU to feel his reaction was a bit dismissive? If he were going into hospital I would definitely make sure my phone were charged (I couldn't even use him as an emergency contact at the hospital) and I'm not sure I could sleep for news. He was asleep when I got back at 5an and only just recently woke up. His first comment was: "I'm tired - I didn't sleep that well". You and me both!