Mitral & tricuspid regurgitation - SURGERY?

I am a 39 year old female (132 pounds) who was just diagnosed with mitral regurgitation (grade 3-4) / mitral valve prolapse and tricuspid regurgitation (grade 1). My LVEF is 55%, and both leaflets prolapse and are thickened.
I have been symptomatic for quite some time (in hindsight), but have really noticed an increase in the frequency and severity. I've experienced palpitations, dizziness (co-workers notice I seem disoriented and take care of me), and shortness of breath, but don't think I have any atrial fibrillation.

I'm trying to figure out the results of my echo:
LV Diastole (LVED) 5.3 cm
LV Systole (LVES) 3.2 cm
LVEF 55%
E:A ratio 1.0
Decel time 160 ms
MVA 2.7 cm2
Mitral regurgitation 3-4
TR Vel 1.8 m/s
TR Gradient 13 mmHG
EST RAP 10 mmHg
EST RSVP 23 mmHg
Tricuspid Regurgitation 1

I also have 2 specific questions:
1. Is it significant that the regurgitant jet seems to hug the wall and reaches back into my pulmonary veins?
2. Is there a difference in the size of the left ventricle and men and women? I noticed that the LVED is 5.3. One source I consulted seemed to indicate that this was a typical reading for a man, but that women were typically 4.6 +/- .3, so would that mean that my left ventricle is enlarged?

There is a significant history of heart problems in my maternal family: 3 heart attacks (57, 64, 70s), sudden death from heart issue (51), and high cholesterol.

I have a 6-year old daughter with special needs who will require life-long care, so I'm trying to carefully determine whether to have a repair. I don't even want to think about the possibility that I might not outlive her, so I'm trying to be very proactive and make the best decision!

I do not smoke, drink only moderately (1-3/week max), and eat a healthy diet. My only other medical condition is asthma (which has caused 2 hospitalizations).

Any advice, suggestions, or information would be greatly appreciated.

[LTB39]

I've also been experiencing a noticeable increase in palpitations and dizziness and when I took my blood pressure last night and this morning, had a irregular heartbeat.

Is this cause for concern?

- Lori