Welcome to our forum and sorry to hear you are feeling unwell.
Everyone has a small amount of Candida but when our immune systems are compromised (usually through low thyroid hormone) and we eat a lot of sugar, the growth can become prolific.
Many members have complained of strange smells and tastes and I have had them myself. I think it more to do unbalanced hormones than the candida. Do you have Hashimotos Autoimmune Disease (this is the most common cause of hypothyroidism) ? ? ..
I have been under Guys Hospital for strange tastes and thick saliva. It has been explained to me that the brain, nerves and receptors for taste and smell can be affected by disease.. The receptors are located in the taste buds in your mouth and in your olfactory epithelium for smell.
They usually grow, develop and die over a period of 1-7 days and are nourished by specialised substances (proteins) secreted in saliva and nasal mucus for smell but Hashimotos (or other autoimmune disease) can alter the saliva & mucus but also how our brain works with the receptors and pathways, meaning we interpret tastes and smells differently.
Since changing to NDT I detect a slight improvement. This could be the meds or just the fact I have been optimally medicated on thyroid hormone replacement for over a year. Many symptoms often lag months behind good biochemistry and I believe it to be a multifactorial cumulative effect that eventually gives us well being..
A TSH of 6.82 is too high for someone medicating Levothyroxine and would indicate you are under medicated.
Have you had Vit D, folate and ferritin levels tested as all these are commonly deficient in people with low thyroid hormone and (indirectly) required for good hormone synthesis.
Are you addressing the candida ?