Avoid looking down too much and reduce your angle of bending while doing daily activities and feeding the child if it's still going on. Mobile, gadgets, domestic work laptop use. Continued looking down and working can be creating stretching of the muscles of the neck and of the nerves of the back of head and pressure on front of throat.

Core strenghthening exerise will help. Also bridging exercise. Consult an ent for nausea. Can be vertigo. Pregnancy causes a lot of strain on the body. Try regaining it by daliy exercise. Maintain a very good calori intake. Dont be empty stomach

Clinical examination needed. Start with neck and back exercises , posture care, daily walk .

Consultant ENT doctor once. For back pain you need to back muscle excercises.