Can my thyroid gland affect the effectiveness of my birth control pill and my night sweats?

Hello, since the birth of my last child, my body has difficulty accepting the contraceptive pill. With the advice of a doctor, I had to change my pill about 6 months ago because it didn't suit me anymore. After all this time, it seemed to be working well, but now some small undesirable symptoms are starting to surface, sometimes spotting in the middle of my pack or almost no bleeding during my pill withdrawal period etc. but a machal symptom more than the others before my period and during my period I have incredible night sweats I wake up soaking wet almost every night, can this be related to the pill, a hormonal imbalance? I don't know if I should go back to my doctor again to change my pill :/ thanks in advance

And last but not least, my family doctor gave me a prescription to have my thyroid gland checked because other symptoms unrelated to my pill led him to believe that I might have hyperthyroidism despite normal tests in the past... I know that only the results of the test can give me an exact answer, but could it have something to do with my body suddenly having difficulty with the birth control pill?

Thank you very much, I'm going to take my test tomorrow morning, I'll wait for the results with impatience! Does this mean that my pill is no longer completely effective :o if this is the case?