Regarding vague complaints, nobody enjoys seeing those patients. It's what makes our field hard. Giving you an approach is tough because it's so different depending on the vague stuff that patient complains of. In general though, I look at the combination of vitals+chronicity of symptoms+patients contact with the health care system. Doing this can often help get you started and if I'm still concerned I usually arrive a list of 3-5 can't miss things diagnosis. Then, all you gotta do is rule them out rather than try to diagnose them. You don't have to test for everything, you just have to briefly chart how you're ruling things out clinically. Also, seeing patients walk (or observing whatever the relevant functional activity is) can also provide a some measure of comfort that the patient's body isn't exploding from the inside out (CC from last week). If you do this and they have a normal workup and stable vitals during their ED visit they're probably fine for home with the diagnosis of their main symptoms.
Totally agree...and I find myself saying the following in my head (and sometimes out loud too in front of the patient)
"You have an odd set of symptoms, unclear what is causing your problem."
"There might be 20, 30, or 40 different possible explanations."
"However only a very small number, like 5 (or make up a number) are diagnoses that will kill you."
"And my job is to make sure you don't have those 5. I can't do everything. That's why 95% of all the doctors in our country work in clinics."
"I promise I will test for those 5. I just can't do anymore."
Now
1) you gotta make them feel better. Most people have pain, so make sure you take away the majority, if not all, of their pain in the ED.
2) When someone has weird symptoms that don't make sense...I always first think vascular. Because frankly most serious of all medical emergencies are vascular. As long as blood goes to where it's supposed to go, and returns to where it's supposed to return, then you've ruled out the real bad stuff. You can't miss major bleeding, stroke, heart attacks, PEs, dissections, ischemia, etc. Notice these are all vascular emergencies. You can miss the weird infection. Because that infection is not causing hypotension and sepsis (because you wouldn't miss that). You can miss weird Neurologic stuff (not strokes), because most of it is indolent.
3) Pt's love that ****. Especially if they are not educated. The love it when you say "Ma'am the blood is flowing real well to your brain and back.
4) I tell just about every patient "I believe your symptoms! I believe your pain! Something is wrong. But it ain't serious. There are doctors that want to get paid to help you out there! Go see them!"
5) So they leave the ED, their pain is gone or almost gone, and you verify via testing that the blood is flowin' just right.
You'll be fine. I'll tell ya I know where you are coming. People always say "no-one is helping me, where else am I supposed to go?" It was hard at first for me to answer that question. Now I just say "Sorry, I can only do what I can do. And I'm trained to save you from dying."