Employment Law Questions? Ask an Employment Lawyer.
Thank you for your question and I'm sorry to hear about your situation.
Unfortunately, issues like this do come up at work and can cause you to lose your job if you do not act to protect yourself. My first recommendation is to go to the doctor and explain your situation and ask the doctor to write a letter for your employment that points to the odor being the result of a medical condition. This will offer you some level of protection as your employer will not be able to point to your personal hygeine as a reason to fire you. The next thing I would recommend is asking the doctor for some sort of treatment that can provide you with relief from the odor.
If you can follow these steps, you can potentially seek protection under the Texas Human Rights Act and claim that you are being discrminated against as a result of a medical disability. I am unaware of any case that is similar to yours where an odor has been found to be a disability, but this is likely your best bet for trying to get legal protection.
Please let me know if you have further questions. Please also remember to rate my answer positively so that I am compensated for my work on your question.