question: Hello there, I have just returned from a scuba diving holiday to Puerto Galera, Philippines with a diving group and whilst there I noticed a lump under my armpit and now there is a couple of them. The food was terrible and a couple of our friends got food poisoning, whilst diving I didn t exceed my no decompression times on any dive and always completed a 5min 5m safety stop after every dive. I am wondering if it s an infection rather than a symptom of a DCI?