I Have Recently Been Put On Levothroxine (3 Months 50mcg)for

I have recently been put on levothroxine (3 months 50mcg)for thyroid and also oxybutnin 10mg, I've just started experiencing of tightness of chest, increased puls, head ache, fatique, dizziness & sleeplessness. I am also on trazadon and multi vits. are these enter acting some how? I've stopped taken lev and oxy