Puppy anxiety peaking

So we have had our pup just over 2 weeks,she turned 12 weeks old today. I have had mild anxiety over the last two weeks some days are better than others. Tofay I am in full anxiety attack mode. She had her second lot of injections yesterday mirning so of course she is out of sorts but my brain is panicking there is something wrong. She is more tired than usual,her bed blanket was wet with urine not soaked but wet and smelly,she keeps biting her tail (bot a new behaviour) just bot herself. I am worrying aldo becuase she has been toilet training is the garden and exploring the grass(supervised) two days ago she sniffed something and started licking,I rushed over it was a missed poo from my older dog so I start worrying she's now got worms (no evidence of this). Please has anyone got advice to help me calm down, I have been more anxious since I had my children but I cant switch it off today 😢