Yep. As oestrogen levels drop muscles may become lax = aches and pains. Have U tried an over the counter pain relief?
Acid reflux is common as we age, due to the above. 'hiatus hernia' should be investigated, have you been given treatment - I managed with Milk of Magnesia for years then developed an irritating reflux cough. My GP gave me Omeprazolol which does help.
I don't know how GPs are still not opening their surgeries to face2face appts. We go via the receptionist on the 'phone, followed by a GP/Pharmacist and a Surgery invite if necessary.