Hello, Today I had an unplanned ultrasound. The doctor said there is …

Hello, Today I had an unplanned ultrasound. The doctor said there is hypertonus, that the uterus is pressing on the baby. She advised me to take sick leave, but I can't get it from work. My job isn't heavy, I sit at a computer (office worker). In the middle of the day I can lie down on the couch and rest. Question: has anyone experienced hypertonus, how did they cope with it? Is it dangerous?