Irritated collarbone could be the liver stressing or it could be heavy metals causing the issues. The reason I say that is because heavy metals get stuck in the endocrine glands like the adrenals and thyroid. If you thyroid is hurting theres either metals stuck in it or its hurting because your adrenals aren't giving enough support to the thyroid.
How this all relates to candida is this: if your candida is chronic and keeps coming back then theres a heavy metal problem. Candida also wears out the adrenals leading to subclinical hypothyroidism.
You can usually tell when the thyroid is having issues because it visibly gets larger.