Weakness with mild breathlessness for over two weeks needs a basic check for anaemia or
thyroid issues, since both are common at your age. The pulling feeling under your tongue and pressure across your teeth and jaw sounds more like jaw muscle tension or a dental issue than anything serious, and the right-sided head discomfort could well be linked to it.
Next Steps
Please see a physician for a CBC and
thyroid test given the weakness and breathlessness, and a dentist to check your teeth and jaw, especially if you clench or grind at night.
Health Tips
Go in sooner if the breathlessness worsens, you feel faint, or the jaw pressure keeps increasing despite rest.