Having excessive vaginal wetness is not an uncommon problem in women, and I do not feel like this is caused from your hard labor. The only possibility taht it is related to your labor, is sometimes after childbirth, women develop urinary incontinence simply from giving birth, and this can cause urine to leak out when sneezing, coughing, lifting heavy items etc. If this is the case, there are kegel excercises that you can do to strengthen the muscles and avoid this problem.
Here are some other causes of common vaginal wetness.
Your period, discharge from hormonal fluctuations
Normal discharge is generally clear, or a little milky white, and has no unpleasant odor, and is not accompanied by burning or itching.
If it has a foul odor, itches, any sores, swelling, and vaginal irritation, this is considered not normal and you need to be seen by a doctor.
Since you do not show any signs of infection, this is probably just normal for you. There are things you can do to control the wetness, such as OTC products such as deodorant powders that can be found at any drug store, even Wal-mart. Vagisil has a highly recommended powder, that is talc free, and has cornstarch to help absorb water. This should assist you in your problem, if wetness continues, or signs of infection develop, please see your doctor. Thank you.