Lubricant

So I just turned 40 and I should be at the point in my life where I'm comfortable with my sex life. Its not that I'm not, it's that Its hard for me to turn on meaning I don't get art and if info I don't stay wet. I've used some lubs but they give me a yeast infection. I was told to use coconut oil that's fine but I'm still dry internally...... I've checked for std's, yeast bv and to see if I was going through pre or menopause and I'm not..... This is ruining my life literally. The only thing I can say that's going on is that I was diagnosed with hyper thyroid. I saw the doctor got an unltra sound and no avail. After I've call for reults of the sonogram I've heard nothing yet and its been over 4 weeks.