Shortness of breath after eating/drinking
Asthma is a possibility; although they didn't test me for that yet. An aunt of mine developed asthma as an adult, and during pregnancy it can obviously get a lot worse.
Just thought I'd let you know that you're not alone. I've read of women complaining about this quite a bit, so it's not totally unheard of.
ETA: I also wanted to add that this is worse for me in the mornings too. Usually about 30 minutes after breakfast I start feeling like it's really hard to do much of anything. It passes after about 5 minutes, but it is unsettling. Also wanted to add that I've been having palpitations off and on since around 19 weeks. I've had multiple EKGs, including a 24-hr monitor (which I was wearing during several of those episodes) and everything checked out OK.
I also agree with PP that blood sugar issues might come into it too -- if your body is having any trouble handling sugar/not producing enough insulin, sugar might have a bigger effect on your bodily processes. IMO.
I have the exact same thing. Although I haven't really spoken to my doctor about this, I do believe it is because sugar makes you retain more fluid and it is just a lot of fluid your heart has to pump, especially since you already have a fluid increase due to the pregnancy alone. I also have low iron and I feel short of breath after eating and I think it is because if i eat more than a small portion of food and a lot of my blood rushes to my stomach and guts for digestion, there is less iron to go aroung for my limbs, hence feeling like i han't get oxygen to my limbs. After breakfast is when I have the most shortness of breath and it is worse when I eat a large portion of cereal and milk. I think this is because the cereal is sugary and the milk also has lactose sugar in it. I also think it is because when u wake up in the morning you have more fluid retention than the rest of the day and retaining all that fluid makes my heart have to pump a lot of fluid which is why it feels like it is pumping harder. None of this is told to my by a doctor, its just what I derived from whatever knowledge I have about anatomy and physiology. I hope this helps!