Is she sick ?

Hello, I want to as a question if she is sick or no. I will drop a video, tell me should I go to the vet. She chirps, eats, drinks. But she does look kinda suspicious and maybe sick.

Edit: Cant upload video here is a photo

Very difficult to tell from a photo. You can upload a video to YouTube and link it from there. However since you see your bird every day and are familiar with her habits and behaviour, you may be in the best position to know if something is different. Also check for any changes in your bird’s poop. Birds are experts at hiding illness but poop doesn’t lie!

Female get a brown crusty cere that's normal if that's what you are worried about?
What is making you worry? If you think your bird's sick get to the avain vet is the best bet. Also get a digital kitchen gram scale, and track weights a good way to pick up problems.

What do they eat? On seeds only with no veggies they can develop problems. Also don't add anything to the water. Adding vitamin to water makes the water go bad quickly.
I have some links on sick birds I will get you.
https://www.littlecrittersvet.com/sick-birds.pml

This is from a difference article
Budgerigars (Budgies)

Budgerigars, or budgies, commonly develop cancerous tumors in their kidneys and reproductive organs. Kidney, ovarian, and testicular tumors often cause a unilateral (one-sided) lameness that owners often mistake for an injured leg.
Goiter (underactive thyroid gland, or hypothyroidism) also can occur in budgies, especially when they are on all-seed diets. Seed contains very low levels of iodine that is required by the thyroid gland to function properly; therefore, the gland swells to try to extract all the iron it can from the seeds. Budgies afflicted with this condition are often overweight and have a squeaky voice or regurgitate when they eat as a result of the enlarged thyroid gland pressing on the esophagus.
Another condition commonly seen in budgies, especially when they are in close contact with other budgies in pet stores, is psittacosis (also called chlamydiosis or parrot fever). It may be carried by budgies without them showing any clinical signs, or infected birds may show respiratory signs (sneezing, difficulty breathing, decreased ability to fly, and tail bobbing) or a swollen abdomen from liver enlargement.
Since many owners incorrectly feed all-seed, high-fat diets to their budgies, obesity is common in these birds. Hepatic lipidosis (fatty liver disease) is a problem that often results and causes death. This species also is predisposed to poor diet-related (high-fat, all-seed) tumors called lipomas and xanthomas that may be found on the wings and ventral abdomen. Lipomas appear as pockets of soft, white, moveable fat, while xanthomas are typically firm, fixed, and yellow-orange.
Reproductive problems are very common in pet birds, as well. Egg binding is seen often in pet budgerigars, even those housed individually without a mate, that are still capable of laying eggs. Birds often become egg bound when they are eating diets high in seed that lack calcium and vitamin D, which are critical in the formation and laying of eggs.

Most of us depend on our vets as a first resource...

Maybe this will help.


Certified Avian Vets
https://abvp.com/animal-owners/find-an-abvp-specialist/
If none are near you...
Avian Veterinarians
http://www.aav.org/search/custom.asp?id=1803
In my opinion, any of the vets listed here should be better than a regular vet.
International contacts, too.
Or... sometimes I find a place to start just by Googling "avian veterinarian near ((your location))"