hello and a warm welcome to HCM,
You seem to be having a sensation of lump or foreign body in your throat which is very common especially if you have a minor infection. But to be on the safer side you need to consult an ENT who will perform a proper examination of the throat and may even suggest an endoscopy
to confirm any ominous lesion.
Meanwhile take lots of warm fluids and avoid spicy or oily food since it may also be a sign of reflux
hope you feel better
Dr Sriram Nathan