Exhausted- Venting sesh

I love my son and my life more than anything, but man teething and this stage of his life has been taking the life out of me. I'm a SAHM and I love that I get to be there for my son, but during hard seasons like teething, it's been so stressful and exhausting. I'm constantly worrying about his formula intake because he's been taking in a lot less recently due to teething, he's up almost every 2-3 hours at night since he's not eating during the day, and he's just all around fussy. On top of it all, we've had sickness in our family like crazy. My husband and I have been back and forth getting sick, but right now he is the sick one. I've been taking care of my son while he's recovering, and I'm so tired. He works from 4am-10am, so I'm usually the one taking care of him anyway, but recently it's just been so overwhelming. With teething and the lack of sleep, I'm exhausted all of the time. Any other mama's relate? Teething is a nightmare