Assistance with payment

On November 30th 2017 I retired from my job with the intention of going to work after a couple of months. Unfortunately I started to become ill and began seeing specialists. At this point there are things we know and some things yet to be tested. I had a small loan with the credit union that has credit insurance on it so I filed a claim. As of Friday the claim has not been paid and the credit union wants payment. According to the insurance company it can take another 30 days before payment. In the meantime if I do not catch up the payments my vehicle will be repossessed. This, according to the credit union is called cross collateral. It does exist. The car would be used as collateral for the loan payment. I need my vehicle. I have multiple doctor appointments in a month in addition to other appointments. Once the insurance company pays I will no longer have to worry about it. I've also applied for social security disability. Any help I can get will be greatly appreciated.