emotional

I am currently 38weeks. Sometimes I felt so emotional and cried and I don't know how to explain this. I felt myself very unwell and heavy everything seems like very careless and felt so tired. My hubby did came to consoled me asked me what happen I just can't explain I just my body cannot take e weight and so restless. I have aged 3yrs toddler she is attention seeker and she cling to me alot. anyone mummies here have the same issue like me? Am I mentally stressed or????