wow that looks good and green. I know Hetty will be around and can help you more but was the drop white or clear? looks like maybe an inflow was broke or cut off in my experience if the cutting (branch) has white liquid its due to a cut scratch in the skin. if it is a clear could it have been sweating? was air temp warmer then the plumie? i know Hetty has told me you can tell they are waking up when the tips glissin. I have not seed that till this year and its amazing they truly look like they are glissining or wet.
you know i just looked at the pic blown up and i see the drop i say nothing to worries about looks healthy to me. Do you have her outside? 40's and wet is not very good how is your daily temps good and warm?