Nidia,
Did you have medical insurance at your past employer?

If so you should still be able to keep it under COBRA since you were recently laid-off. Although, you will have to pay your former employer's group rate cost.

I believe there is still Federal assistance under the Economic Recovery Act to cover about half the cost of COBRA for people who get laid-off. Check with your former employer's HR department asap.

Depending on your other assets, you may also qualify for Medicaid assistance from your State, but try to hang on the your COBRA until you can sort this all out.