Finasteride side effects after 2 weeks?

Hi, I seem to be experiencing side effects that aren't reported too often. periodically over the past 3 days I feel nauseous & also getting slight muscle & joint pain, especially in my hands. I tried to squeeze toothpaste out the other day & could really feel a stiffness/pain in my wrists. My plan now is to reduce my intake to 1 tablet every other day to see if that makes any difference. I'm hoping that it's my body adjusting to the medication & eventually the sides will dissipate.