I agree with Murfy above...
You are definitely not out of the woods yet.
I'm in Colorado, but I don't think the laws vary that much. I was just arrested for a raid that happened over 15 months ago. In most states there is a 4-5 year statute of limitations on drug charges. The police are legally allowed to hold you for 3 days, 36 hours, without charging you. Sounds like they are trying to build a case against you, probably investigating more. Could be many reasons for this. Maybe some evidence got messed up and they are trying to acquire more, or maybe they think you are some large level dealer/supplier and are trying to make stronger charges stick.
Moving is a good start, but unless you didn't leave any trail behind (mail forwarding, left forwarding address with previous landlord) it will only slow them by a few days if a warrant is issued for your arrest. If I were you and wanted to continue growing, I would only do it someplace where my name isn't on the lease or a single bill, as well as not having any vehicles registered there. No mail, etc.
What to do now? Either cross your fingers and hope you don't hear anything or leave the state. Chances are you do not have hefty enough charges for them to pay to extradite you if you are in another state. And, if you leave before a warrant is issued you can claim you had no knowledge of the warrant. Just don't go back to Texas.
If you don't want to run, then sit tight. I would contact a lawyer and keep their number on hand, preferably memorized as if they do arrest you they won't let you take your address book to jail. Any good lawyer will tell you that there is nothing they can do for you until you are formally charged by the DA. Any lawyer that tries to take your money right away I would not trust. If they want a simple $500-1000 retainer in case you get arrested they can already represent you, maybe. But if they want $5000 up front, find another lawyer. I didn't pay my lawyer until after I was arrested and it didn't make a difference.
If you are short on cash you could try to go with a public defender. If you have no record and a plea is likely, then it might save you a lot of money. Depends how serious your charges are. If its a felony charge I would probably spend some money on a good lawyer.
You cannot get discovery until you are charged with a crime. Good luck man. I suggest you move to a more pot friendly state if you want to continue your "hobby". Peace.