Great suggestions above! Re the lymph node question, perhaps someone else can address that. Re stress - when your mind starts going over all the ways things might go wrong, just give them a time limit, like a minute or two and then force yourself to think of all the ways things will go right. Just take one possibility at a time, see if there is something you can do about it, or delegate someone else to do it and then move on. Make a list, and then check it off. This will release it from your brain and you can always come back to it later. . . . because you have already done something about it and you will feel more in control of the situation. Some things we worry about never happen anyway. Take deep breaths, do toe touches, yoga that gets oxygen to your brain. It takes practice. Come here often. It really helps. I was a basket case of anxiety and stress when caregiving for my son and we both made it through with this great forum and the people in it. You will too!