Welcome. As hormones rise and fall nausea can be problematic. 2 pumps initially might have been too much along with your own hormones.
Some find that keeping a mood/food/symptom diary of use. Stop worrying about letting anyone down, if you had broken your leg??? Headaches can be debilitating. Have U tried pain relief? Migraines can become troublesome in peri-menopause.
As oestrogen levels drop the body may become dry: inside and out; skin, scalp, eyes, deep in the ears, nostrils, vagina ....... muscles may become lax = aches and pains.
There are several ways of delivering HRT. I would ask for a referral to a dedicated NHS menopause clinic, getting onto a waiting list sooner rather than later. U can always cancel the appt if necessary.