Energy Drain

I have a problem with emotional situations - they tend to drain my energy completely. On Tuesday morning, my sister-in-law's father passed away. I was directing traffic around the house last night, and got home sometime after 11pm. I was, to say the least, shattered, even though I was doing nothing more than waving a torch and walking people from their parking place to the house (to protect them from oncoming traffic).
Every funeral occasion in the last year has left me drained; even if they were only slightly connected to me.