So the first fruit my tomato plant made was rotten. I was advised to re-pot it in a bigger pot, water it more, and give it a bit of tomato fertilizer (I got spikes) to cure the blossom-end rot. Now that my plant has produced 3 more fruits that seem healthy, the stems in some places are covered with these wierd bubbles ....

Click to see

Can anyone diagnose the problem and suggest something?

Is it even something to worry about?

Please help me!!!!!

Dee