The Equality Act 2010 considers someone disabled if they have a physical or mental impairment that has a substantial and long-term adverse effect on their ability to carry out normal day-to-day activities.
If you’re a disabled employee, your employer has a duty to make 'reasonable adjustments' to reduce or remove obstacles in the workplace. This is to ensure that you’re able to carry out your duties without being disadvantaged.
When you apply for a job you’re not required to disclose your sexual orientation. The Equality Act 2010 protects you against discrimination, whether you identify yourself as gay, lesbian, bisexual or heterosexual. This means that if you do decide to disclose your sexuality, it’s illegal for an employer to discriminate against you on that basis.