You definitely need to get in to see your primary care doctor
or your OB GYN doctor about this problem. These symptoms are not normal over this period of time, and there is likely something that can be done about it.
First of all, your doctor will perform a complete physical examination including a pelvic exam. They will take a urine sample to rule out a urinary tract infection
although, honestly, this does not sound like a urinary tract infection because it has been going on constantly for 4 months. More likely findings on the physical examination might be relaxation and sagging of the pelvic muscles or bladder (called a cystocele). This is very common in older women who have had multiple pregnancy and vaginal births.
The source of the leaking urine in this situation is that the sagging muscles do not provide support to the bladder, and this results in urine leaking and urgency.
Another possibility would be an overactive bladder muscle leading to spasm, which is also common in older women.
Based on what is found on physical examination, your doctor will recommend treatment, which may include restricting fluids, medications to reduce spasm, or special exercises to strengthen the pelvic floor muscles.