Termination During Worker's Compensation

[Aries19]

My question involves workers compensation law for the state of: Texas

I fell on the job recently and strained a muscle in my lower back, so I was asked to fill out an injury report. I then had to go to the business' doctor to take a drug test and get checked out. I had been told to take physical therapy and to be on light duty. The first night I went back I felt like I couldn't accomplish much of anything, so I was taken off the schedule for a few days after.
The drug test results came back positive, and I was surprised of the results. I openly admitted that previously I had used marijuana, but it was around 4 months ago, right after I moved here. They wouldn't allow me to retake my test or get the actual test results sent to me, regardless of it being linked to my social security number. I got terminated, I haven't completed my physical therapy or gone for my check up to see how everything is. Can they just simply cancel out my appointments as of termination even though I asked to be retested? Is there anything I can do legally to fix this problem?

[cbg]

Has the workers comp claim been formally denied?

[Aries19]

As far as I know, it wasn't. I already took two physical therapy classes, and saw the doctor once. I was supposed to go in for a check up yesterday but they were backed up so I got rescheduled until monday. Im just not sure whether I will actually be able to go see the doctor without paying out of pocket now.

[Betty3]

I do have to say this was not a wrongful termination & they do not have to allow you to re-take the test.

[cbg]

And if the workers comp claim is denied, you can appeal; however, if you are unsuccessful you will have to pay out of pocket. It is POSSIBLE that your regular insurance carrier may pay if you have a formal denial from the workers comp carrier; they will need to see the denial letter.

[cyjeff]

By the way, grass doesn't stay in your system for four months.