Where is home, Christine, and how long have you been away? From your bio, you sound not so happy at work ... Could that be a factor in this heightened emotional sense?
We all need to feel supported, and if you're not getting that at work then it's even more important that you feel secure and safe at home ... do you?
I'm concerned about the thin/fat etc. Has your life, and have you, fluctuated at extremes a lot?
It seems to me that first you need to see your PCP and get a thorough medical exam, if you haven't had one recently. You could need a little tweaking for thyroid or other endocrine problem. If a physical turns up nothing, I'd suggest seeing a therapist or psychiatrist. There could be a trigger or stressor you're not fully aware of, and once you figure out what just that knowing may lift the weight.
I'm glad you found us! I've lived in southern NM off and on most of my life, I'm bipolar and have been here 2yrs. I've met great folks, and some are part of my support team.
You'll be okay--you aren't alone, if you'll post here and keep coming back.
Roadie