The first thing I would recommend is speaking to your attorney, if you are represented by an attorney who appealed your claim. Your attorney should be able to explain what is happening with your case on appeal. If you or your attorney only appealed the SSD portion of your claim to the Appeals Council, then you should have reported the drop in your assets to the SSA. You would have been eligible to receive benefits on your SSI application when your assets dropped below the $2000 limit.
It's impossible to answer your question fully based on the information provided. Generally, when your SSI benefits are suspended based on excess resources (having more than $2,000), you have 12 months after the effective date of the suspension to have your benefits reinstated. After that, SSA automatically terminates your SSI claim, and you have to start over with a new claim. I recommend that you hurry down to your local Social Security office and see if there is still time to have your SSI claim reinstated. If not, file a new one ASAP.
Clams beyond the DLI are really difficult. If you can try to get your dr to say you were disabled in the past you may try to file for Ssdi.
You should be able to submit to your atty your bank records stating you have less than 2k to get Ssi again. If you are pro se I assume you can take it to local office and see your Ss rep.