Healthcare for low income Baby Boomers

I am a 60 year old widow. I lost everything from home to my health insurance.. I have pre existing conditions which preclude me from qualifying for individual health insurance unless I am rated much higher. In Mendocino Country California where I live ,the county subsidized program eliminates anyone who makes for than 1700 per month. I just started collecting my husbands S.S. which is just about that. I am a licensed RN, and work as a temp employee at our local health center. If I make more than a few hundred dollars in a month A. I do not qualify for health care at all. B- I loose a portion of my widows benefits. If I AM approved for county insurance, my deductible would be a share of cost of about $1000 per month. Any preexisting health insurance in California is unaffordable..payments approximately $500 per month, and that is after 6 months of NO county insurance. What happens to me and other people who fall between the cracks? Not old enough to receive medicare and too old to qualify for private, affordable insurance due to health conditions, ie. mild hypertension, high cholesterol. I have never been without coverage, and I am in a constant state of panic over this. I hear of many Americans moving to Canada just to have healthcare with a nominal premium. If I got ill, I don't know what I would do. It terrifies me. I live under the poverty level, but apparently I'm not QUITE poor enough. We need President Obama to address this issue . I believe it is urgent for me and so many other Americans.