Oh yes sussed it! Will try Vitamin B12 Look at this information :- Symptoms:
"Stargazers" constantly throw their head back, sleep with their heads between their legs; go around in a circle; look at the ceiling, turn their heads around in a circle and look up.
Stargazing can strike at random and without warning or past history of problems.
In some birds, the condition may correct itself over time or may be corrected given certain condition ...:
...resolution might be achieved through successfully treatment protocol (antibiotic treatments, etc.).
If this condition is left uncorrected, the following progression) can be expected:
Inability to fly.
Loss of balance/equilibrium. Falls off the perch.
Difficulty moving around in cage
Can't find food or water - resulting in starvation
The end result of stargazing is almost always death.
What Cause Stargazing / Twirling?
A definite cause has not been identified as of yet; however, the following are suspected:
Egg positioning (?)
Viral / bacterial or yeast infection
Chemical imbalance
Vitamin and/or mineral (nutritional) deficiency; Vitamin D deficiency (lack of natural sunlight exposure). Too much calcium can result in a drunken bird' look
Genetic predisposition
Inner-ear problem
Treatment for Stargazing
The following treatments have been reported as being fairly effective:
Nystatin
Trimethoprim Sulfa
Vitamin B 12 to strengthen the nervous system
Enhanced nutrition to correct any nutritional deficiencies
Prevention of Stargazing
The following steps will be an important step in not only preventing this disease, but others too.
Prevent birds which carry the genetic predisposition for this disease from breeding so that they cannot pass this condition on to their offspring
Provide the best nutrition possible.
Provide uncontaminated water and clean air
Keep your bird's environment clean