bisect; bisectable; bisected; bisection; Bishop; Bishoprick; Bissell, Wilson Shannon; Bissextile; bit; biting; bitter; bitter animosity; bitter enemy; bitter feelings; bitter harangue; bitter words; bitterness; bivium; bizarre; bizarreness; blabber; blabbing; black; Black book of the admiralty; Black book of the exchequer; black cap
Nausea and sore throat can be caused by a cold (due to a bacterial infection). There are bacteria that cause upper respiratory infections and settle in the throat. Sore throat is common during such an infection. Infections also tend to cause upset stomach and can cause nausea.
And, since it was a throat infection, you might not have been eating as well as usual. The nausea can be caused by the dizziness. I'd give the doctor a call and see what they think. Meanwhile, if you feel dizzy sit down. Don't take extra-hot showers or baths because they can make you light-headed. Don't stand for prolonged periods. Be careful when you stand up from a sitting or lying position.