my daughter has under active thyroid she is on medication for this, but now when she eats or drinks anything her stomach swells up and gets bloated. now her foot hurts and seems to be swelling.is it to do with the thyroid do you think.she didnt have any of these things before she went on the medication.i thought with her being on the tablets the symptoms she had before like bleeding all the time would get better,but they have,nt. she seems to be getting more things wrong. .