I Hve Aquestion I Hve Throid Problem And I Think

i hve aquestion i hve throid problem and i think its a nodule thyroid visible but before small when i tke supplement concentrated whole food supplemnt its a complete in one capsule i bought it coz its good for thyroid hypertension cyst and so mny type of illness can cure my natural supplnt, my question is aftr i took tht supplmnt once a day now almost 6days the reaction very fast thres a pain on tht particular nodule and even my neck paining and almost i get sick ..Is ths a normal reaction ir side effect? or whatevr any natural upplemnt for thyroid tht reaction is normal?