underweight, possible hypoglycemia

Question
Hi I have lots of questions. First, some background on me. I'm 26 years old, 5'4" and about 106-108 lbs when not pregnant. I am currently 13 weeks pregnant and weigh about 117 lbs. At 18 I was healthiest, very active, lifted weights, lots of cardio (distance running, albeit slowly), and weighed about 120-125 lbs. During my 2nd yr of college, I was less active and also began eating extremely low fat. This was not intentional, I was not trying to lose weight, just eat inexpensive food that I thought was adequate/ healthy. So I was eating lots of beans/ peas/ lentils, some vegetables- lots of salad greens, tomatoes, and potatoes, some milk and fruit juice. I also started drinking coffee daily. My weight got down to about 106 during that time. I ate this way for about a year or year and a half, then got married at 21 and went back to eating the way I had in the past, but my activity level never went back to what it was in high school :(   Anyway.... sorry if this is too long.... I became pg and had no problem gaining weight during my pregnancy, and gave birth to a 8lb 2 oz baby. I had my 2nd child 23 mos later, gained adequate weight, 7 lb 12 oz baby, but had some trouble with low amniotic fluid during the last 6 weeks of my pg. One Dr. thought this was due to my low pre-pregnancy weight/ not having enough fat stores to cover me if I didn't eat basically constantly. I had been under some stress at that time and had some late meals/ low blood sugar trouble (I think I'm hypoglycemic, and it seems to worsen during pg). After the births of my children, I breastfed and got back down to about 108 lbs within 2 months post partum (other women hate me of course, but I would like to keep some of that weight!) I certainly do not have an eating disorder, I try to eat as much as I can, but I still can't gain/ keep on weight when I'm not pg. Can hypoglycemia lead to underweight? or vice versa? My hypoglycemia symptoms are: Need to eat quite frequently, hunger comes on suddenly and sharply - I NEED TO EAT NOW! Sometimes wanting quick sugar, but usually needing meat or dairy. I get EXTREMELY grouchy when this happens (daily if I am  not home with an immediate source of the food I crave, be it sugar or meat or dairy).... So is there an eating plan you can recommend for me? Why have I been unable to gain weight when not pregnant/ stay above 115 lbs after pregnancy, when I am eating past full and eating frequently, and eating high calorie foods? How can I control my hypoglycemia?
Thank you, hope you can help.

Answer
First of all unless you have been clinically diagnosed with hypoglycemia, I wouldn't assume that is the problem!!  Secondly, if you are pregnant and having these symtoms you really need to talk to your doctor about this!!  I cannot give you personlized dietary advice without actually working with you and knowing more about you.  In addition, this is a service that dietitians charge for.  
My advice is to first speak with your doctor about your symptoms and then to ask your doctor for a referral to a dietitian.  You need to first be diagnosed and then you need to work with someone one-on-one that can help you control your symptoms through diet.  It takes much more than I can give you in a few paragraphs.  Again, I would only be able to give you general info and not personalized services, which is really what you need and seem to be asking for.  I can't tell you why you can't gain weight or why you have these symptoms.  You need someone to work with you and help you to figure it out.  
Kim Tessmer, RD LD

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