### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a enlarged lymph node on the right side of my neck, I first noticed it about a year ago, I also had one that came up on the back of my head, behind my ear on the right side as well. I went to the doctor and they said it was because of an infection/virus and that it would go down. up until that point I had been perfectly fine with no infections/viruses. the one behind my ear did go down but the one in my neck has stayed and got slightly bigger. I went to the doctors again after having the lump for about 6 moths and was told again that it was nothing and it would go down. I then started to get migraines after going on the contraceptive pill, and feeling generally unwell/tired, so i stopped taking the pill and went back to the doctors, they did some blood tests as my doctor though it might be glandular fever, but these all came back fine. I still have to lump, it aches from time to time and I still get migraines, usually around my period, which can last for days. recently Ive also been getting pain/aching in the colar bone region of my neck upwards, especially on my left side, there doesnt seem to be any more lumps though. if that makes sense? should i be worried?

### output:

Good morning Madam, Thank you for sharing your concerns with us. I will try to help you as much as I can through my answer. As I understand, you have got two problems. The first one is a swelling (most probably an enlarged lymph node in the neck). If a lymph node stays enlarged for a long time without any signs of infection (warmth, redness, pain), it is safe to have it removed so that it can be seen under a microscope to make sure that there is nothing dangerous. I would recommend you to discuss this option with your doctor. The second problem is a headache. Oral contraceptive pills are known to cause a migraine. It can also occur around the time of menstruation. If a migraine is too frequent and is disruptive, then I would recommend discussing the option of prophylactic medicine for this condition with your doctor. I hope this answers your question. Please feel free to contact me if you have any other query. Sincerely, 