Levothyroxine side effects

A year ago I found out that I was borderline Hypo. My TSH at 8. My doctor said it’s fine and to not worry about it, knowing we’ve been trying for over a year to conceive. A few months ago another doctor told me I’m not going to be able to conceive with my levels where they were. I immediately asked my doctor to get on meds. She put me on 25 mcg since I was only borderline. I had no side effects at all. I retested after 2 months and my TSH went from 8 to 7.3. I asked to get on a higher dose as we have been trying to have a baby and I’m desperate to have my levels in the normal range. So she has me on 50mcg but Monday, Wednesday and Friday I take 25 mcg. I’ve only taken the 50 twice now and I’ve been so nauseas and also anxious. I’m wondering if this is normal for people until my body gets used to the new dose?? Does this dose seem right for those in similar range? I’ve been taking my pill in the middle of the night when I wake up to use the bathroom because I read that that can help sleep of some of the side effect symptoms.