If you have not consulted with a criminal defense attorney in your community yet you should do so at once. Obviously the gun charge ( carrying concealed weapon) offense is the bigger problem related to this incident. You should consult with an attorney in your county and if you have no prior record, explore the possibility you may qualify for a diversion program.
It can take a long time for those labs to get around to a case, but you are on the outside edge of how long it typically takes. You should hire an attorney who can press the prosecutor for discovery and figure out what the status of the matter is. The firearm charge is a fifth degree felony under the facts you described, if they can prove you were under the influence. So you really should get a lawyer as you face jail time if convicted and, if convicted, will no longer be allowed to own a gun.
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You should hire a local criminal defense attorney so that all of the above listed issues can be sorted out as soon as possible. If convicted on the given facts, there can be significant jail attached to the conviction.
Also, you will not be able to own a gun if convicted of the given crime.