Borderline Personality Disorder
First of all, you are not crazy. I am in recovery from Borderline Personality Disorder. You feel emotions more strongly than other people. Medication isn't a cure for BPD. What helps is therapy, like Dialectical Behaviour Therapy or DBT. It helped me recover. You will take on other's emotions because you will notice their microexpressions and empathize with them.
Check out my blog here for more information on BPD: https://makebpdstigmafree.wordpress.com/
I hope I have been helpful.