Lumpectomy and sentinel node removal

Diagnosed on 3/2 with breast cancer after finding a small lump mid mammogram . The waiting for biopsy results is horrendous. I have invasive ductal carcinoma. Had lumpectomy and sentinel node removal on 25/2. Was fine directly after but then had huge tummy upset for 4 days . Could it have been a reaction to the dye? 

Tesco bras (£6) are fab. Soft bras great but not enough support. 

Today is results’ day and it’s terrifying waiting ....