The Chvostek sign and Trousseau sign are due to calcium deficiency.
Your message is difficult to read due to all the abbreviations, like a text message. I don't know what "chvostek/troueauss" is.
Your question is whether or not you should take ferrous sulfate to ease your throat?
What kind of hypothyroid crisis were you having? Are you on thyroid replacement hormones? If so, what med, what dosage and how long have you been on them?
Do you have current lab results you can post, so we can see what your levels are? Be sure to post reference ranges with any labs, since ranges vary lab to lab and have to come from your own report.