Overwhelmed!

Need some help. I'm feeling extremely discouraged. Long post too sorry! So, my LO is allergic to dairy and eggs. I have about 300 oz of milk in the freezer that really shouldn't be used if I don't want to flare up his allergies. I am currently attempting to completely cut dairy and eggs out of my diet and it's super hard because it seems like they are in EVERYTHING I eat! I exclusively pump, so have the duty of washing bottles and pump parts etc. anyhow, my SO does not feed our son, doesn't help wash bottles or parts, never cooks or cleans the house and I've talked to him multiple times about it. Ever since we both returned to work at 3mos pp, he is a different person! NOT the father he was the first three months and definitely not the partner I've had for the past four years, but that's another conversation. I guess I want advice or something on what I should do, feeling so overwhelmed doing it ALL and trying to eat right (egg and dairy free) for my little guy but it's hard doing it all then trying to find a dairy and egg free recipe at 8pm when I'm finally done taking care of everybody else. To top it off I'm having some health issues and have a head MRI tomorrow morning and SO's mother passed away yesterday and has to travel 20 hours to the funeral, which he says he'd rather go alone to. So overwhelmed frustrated and sad.. Any advice is welcomed