The common cold and tooth-related infections may cause lymph glands in the neck to swell.
On the back of your tongue are several larger bumps than normal taste buds. These are entirely normal and are part of your tasting and digestive apparatus. Their presence is normal. These taste-bud containing papillae are part of normal anatomy of the tongue. They may become inflamed usually due to viral or bacterial infections.
Back of tongue also contains the lingual tonsils which may be asymmetrically enlarged in some cases. Get check out by an ENT.
Good luck SMU25
Kindly,
Kitt