Doc/blood-work is def the best thing to do in your case. Best to find out for sure and know exactly what to do rather than guess in your situation. Try to to panic too much though as most times it turns out not to actually be gyno. Can you actually see an ingrown hair? Do you shave your chest? Os is the lump more under the nipple?
Chocolate, I have 1 week left of Nolva that was run at 20/20/10/10. I was thinking I would wait an extra month before I got bloodwork so I could kinda use it as double duty for a pre-bloodwork for my next cycle. I still plan on waiting 3 months before I go again (if I do), but was thinking if I get bloodwork now, am I bound to see some stuff still improving a little anyway and then be forced to get MORE bloodwork in a few months that might not be necessary. ( I consider blood work mandatory) Also, isn't the half-life of Nolva like 2 weeks or something. If I am feeling fine and have no sides, does waiting a bit longer for this reason sound reasonable. I did pre-bloodwork and more bloodwork on day1 of PCT BTW.
BUT, you said, "and get a blood test near the end of your PCT to see if anything needs to be added or used post-SERM"
...and that makes a lot of sense to me too. I was going to mention that I have inhibit-e (but was not planning on using it) and could use that post PCT if I get Estro rebound...but maybe I should take your advice and get bloodwork soon and before I stop Nolva to know that if estro is still high to stay on Nolva and extra week while also starting Inhibit it so that it is still in my system why the AI is ramping up. I've heard some bad stuff about ATD's which is why I want to avoid it. Maybe I should get a quick order of erase on the way in case I face a similar situation and that might be safer than inhibit-e?