Have to admit, this is a really tough one. After reading about the drug, I am wondering if it all might be from that. It has a huge list of risk and possible complications, including lots and lots of swelling - hands, feet, legs face etc.
If you have never had these things happen before, then the finger points even more to the drug.
What you might do too though is to get a referral to a certified lymphedema therapist and go for an examination to see what they think.
I can't think of any lymphatic malformations that would manifest as you were describing and lymphedema should express itself in the swelling of an entire part of a limb,hand, foot etc. not in "swollen spots" such a lumps.
I also don't think it is dangerous to the lymphatic system, or rather I haven't found anything in the medical literature to indicate that it might be.
Keep us up on what's going on - and we will see what we can do.
Pat
