A headache can be due to many reasons. Migraine and tension headaches are different types of headache. The etiology of the migraine is unknown; in other words, doctors still do not know the causes of a migraine. The etiology of a tension headache can be caused by various reasons. Muscle pain in the neck or a tooth disorder can cause tension headaches, for example.

It is not clear what you mean by “chest inflammation”. Which part of the chest is inflamed ? skin, muscles, bones or lungs? It seems that you meant to describe a skin inflammation because you mentioned redness. Skin inflammation can be due to many reasons but most of these types of reactions are caused by allergies.Chest inflammation is not usually connected with a headache. Further, you'll need to describe the 2 lumps on your neck better in order to estimate possible reasons for them. You'll need several diagnostic procedures (blood analyses, X-ray image of the spine, detailed examination of those lumps etc.) to reveal what is really happening with you. You can consult an internist for follow up.