For an accurate answer to your question, you need to read the description of your work. None of us know. And you knew all the more what you were working with and what might happen. If you feel bad, you should consult a doctor. It would help if you learned more about your building material. And it would help if you learned more about coal gas, too. And it will be much more helpful than you will ask us. And we know almost nothing about your problem. If you want to know your opinion, then describe everything in more detail.
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